This is perl 5, version 14, subversion 1 (v5.14.1) built for MSWin32-x64-multi-thread
(with 1 registered patch, see perl -V for more detail)
Copyright 1987-2011, Larry Wall
Binary build 1401  provided by ActiveState http://www.ActiveState.com
Built Jun 16 2011 17:28:49
Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.
Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl". If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.
C:\Old_Data\perlp>perl -Mbignum -E "print 2**62"