recl value exceeds the maximum allowed for the file's record type

Hi All,

I am trying to run a program compiled using intel fortran 17.0.5 20170817 compiler on opensuse 12 having ~512 GB ram. The code -

user@machine1:~/STORE/TESTING/ssmis> cat test.f
       program main
       irecl= 538109432
c      irecl= 2147483647
       open(3,file='obstore.data',form='unformatted',&   access='direct',recl=irecl)
       end

here is what i get when i compile & run this code -

user@machine1:~/OBSTORE/TESTING/ssmis> ifort test.f
user@machine1:~/OBSTORE/TESTING/ssmis> ./a.out
forrtl: severe (118): The 'RECL=' value in an OPEN statement for unit 3, file /home/user/STORE/TESTING/ssmis/obstore.data, exceeds the maximum allowed for the file's record type.
Image              PC                Routine            Line        Source
a.out              000000000042AA63  Unknown               Unknown  Unknown
a.out              0000000000408CBE  Unknown               Unknown  Unknown
a.out              00000000004029FE  Unknown               Unknown  Unknown
a.out              000000000040294E  Unknown               Unknown  Unknown
libc-2.22.so       00002B501C0D66E5  __libc_start_main     Unknown  Unknown
a.out              0000000000402869  Unknown               Unknown  Unknown
user@machine1:~/STORE/TESTING/ssmis>

In function,

    open(3,file='obstore.data',form='unformatted', access='direct',recl=irecl)

If i set irecl to be 10x smaller (53810943) or ,

form = formatted, then code works fine.

What is the "maximum/permissible/allowed" value of irecl for unformatted file.
Is there a compiler flag through which i can get past the "record length" limitation on unformatted file?

I have already tried integer(kind=8) for irecl, but the error message was same.

Please let me know if more information is required from my end.

Eagerly awaiting your replies.