You can calculate it manually as Future Value = Present Value * ( 1 + Interest in integer form )^number of terms

So for example a $1 at 6% APR for 5,000,000 years would be

F = $1 * ( 1 + 0.06 )^5,000,000

F = $12,615,609 if I'm not too tired to think straight rn

I think technically that does outperform inflation so you will have slightly more purchasing power than $1 today.