Because template 'N' is for a unsigned 32-bit value, but 42949672965 requires 36-bits: 0xA_0000_0005; so the high 4-bits are discarded leaving: 0x0000_0005.

If your Perl is capable, use 'Q' instead for integers > 32-bit.

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In reply to Re: Why is pack("N",42949672965) giving me 00 00 00 05 by BrowserUk
in thread Why is pack("N",42949672965) giving me 00 00 00 05 by isync

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