ls command and large files

`ls` seems to incorrectly report the size of large files.  The file 
tested should be a 2.9Gig file.


- ls version from man page output
       ls (fileutils) 4.1                                  March 
2002                                              LS(1)

[root] # ls -ls bigfile
3005416 -rw-r--r--    1 root     root     923832057856 Sep 12 18:14 bigfile
^^^^^^^ Correct                                   ^^^^^^^^^^^  Does not 
look correct

[root@tic trash]# ls -lsh bigfile
2.9G -rw-r--r--    1 root     root         860G Sep 12 18:14 bigfile
^^^^ Correct                                    ^^^^^  Not Correct

Please let me know if it is something that I am missing.

Thank you,
Eric