50961290820 has 48 divisors (see below), whose sum is σ = 155663581248. Its totient is φ = 12354252160.

The previous prime is 50961290803. The next prime is 50961290837. The reversal of 50961290820 is 2809216905.

It is an interprime number because it is at equal distance from previous prime (50961290803) and next prime (50961290837).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38606379 + ... + 38607698.

It is an arithmetic number, because the mean of its divisors is an integer number (3242991276).

Almost surely, 2^50961290820 is an apocalyptic number.

It is an amenable number.

50961290820 is an abundant number, since it is smaller than the sum of its proper divisors (104702290428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50961290820 is a wasteful number, since it uses less digits than its factorization.

50961290820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77214100 (or 77214098 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 50961290820 in words is "fifty billion, nine hundred sixty-one million, two hundred ninety thousand, eight hundred twenty".