Solaris version check! 32-bit or 64-bit?

To check Solaris is x86-64, x86, sparc9, sparc64, execute the following commands;

isainfo
isainfo -v
isainfo -kv

Examples;
myhost1# isainfo -kv
64-bit sparcv9 kernel modules

# isainfo
amd64 i386

# isainfo -kv
64-bit amd64 kernel modules