The real question with taking the annuity is if it's possible to take a portion of the after tax cash, invest it, and and get the same amount in 30 years. I'm pretty sure most financial adviser will suggest taking the cash if for nothing other than a business reason. It's seems that when discussing "cash vs annuity", the fact the annuity will be taxed and possibly at the same tax rate but over 30 years, is usually ignored. And after 30 years a $60 million annuity jackpot might be really $36 million after taxes.
To make it simple, use the "rule of 72" where if you divide 72 by an interest rate, the result is the number of years it will take to double the initial investment For instance it will take about 12 years (72/6) for an amount of money to double getting a 6% interest rate.
"in year 2044, 30 yrs into the future... that 4 million is worth who know's what??? a lot less, guessing only 1 to 2 million?"
Or just go back 30 years into the past. The prime interest rate was 13% on June 26, 1984.