If you have ever used linux ping you are used to [ -c count] to send a certain amount of count ECHO_REQUEST packets. An example.
ping -c4 google.com
https://linux.die.net/man/8/ping
For some reason Sunos makes it more difficult to figure out.
/usr/sbin/ping -s [-I interval] [-l | -U] [-abdLnrRv]
[-A addr_family] [-c traffic_class] [-w deadline]
[-g gateway [-g gateway...]] [-N next_hop_router]
[-F flow_label] [-i interface] [-P tos] [-p port]
[-t ttl] [-W timeout] host [data_size [npackets]]
The important part for our purposes.
host [data_size [npackets]]
The Sunos example what you saw above. Google is the host. 64 bytes. 4 packets.
ping -s google.com 64 4