50977750820 has 12 divisors (see below), whose sum is σ = 107053276764. Its totient is φ = 20391100320.

The previous prime is 50977750819. The next prime is 50977750847. The reversal of 50977750820 is 2805777905.

It can be written as a sum of positive squares in 2 ways, for example, as 11846580964 + 39131169856 = 108842^2 + 197816^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274443751 + ... + 1274443790.

It is an arithmetic number, because the mean of its divisors is an integer number (8921106397).

Almost surely, 2^50977750820 is an apocalyptic number.

It is an amenable number.

50977750820 is an abundant number, since it is smaller than the sum of its proper divisors (56075525944).

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

50977750820 is a wasteful number, since it uses less digits than its factorization.

50977750820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548887550 (or 2548887548 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 50.

The spelling of 50977750820 in words is "fifty billion, nine hundred seventy-seven million, seven hundred fifty thousand, eight hundred twenty".