Apache/2.2.6 (Unix) mod_ssl/2.2.6 OpenSSL/0.9.7m mod_apreq2-20051231/2.6.0 mod_perl/2.0.3 Perl/v5.8.7.........
Can be limited by changing in your apache.conf:
note that if no option is set the default is Full (read more at apache documentation)
But if you really want to have somethins different, just use mod_security module, and add
SecServerSignature "someCOOLapacheName v126.96.36.199.1.1.0"
note that you have to set ServerTokens to Full option to see the effects of SecServerSignature.