The sum of the numbers of the prime numbers of mersenne

I have a problem to calculate the sum of the digits of the prime numbers of mersenne $$M_ {57885161}$$ , $$M_ {74207281}$$ , and $$M_ {77232917}$$. I'm not a "computer guy" but I know that the sum of the numbers from the computer $$M_ {82589933}$$ is $$111879913$$. Could you help me? Thank you.