4 words take 835 x 10^18. You're low by x10000.
The biggest number of the JTR benchmark page [1] is 80981K for single core (Microsoft LanMan) or 6200 kc/s for 1 CPU (DES).
All combinations take 1x10^9 cpu-days or 14 x 10^9 cpu-days. Amazon pricing ranges from a lot to a whole lot more (at least 39 million $).
All combinations take 1x10^9 cpu-days or 14 x 10^9 cpu-days. Amazon pricing ranges from a lot to a whole lot more (at least 39 million $).
[1] http://openwall.info/wiki/john/benchmarks