Running this test program:

my $v = 123456789012345;
printf "%d %ld %u %15.0f %s\n", $v, $v, $v, $v, $v;
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on my 32-bit perl 5.8 produces:

-1 -1 4294967295 123456789012345 123456789012345
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So it looks like %s and %15.0f are worth a shot.

Later versions of Perl on certain platforms might further support %ll and %q (C "long long" et al type, typically 64-bit integers) according to sprintf.