50686318564 has 12 divisors (see below), whose sum is σ = 101372637184. Its totient is φ = 21722707944.

The previous prime is 50686318559. The next prime is 50686318651. The reversal of 50686318564 is 46581368605.

50686318564 is an admirable number.

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, 905112804 + ... + 905112859.

Almost surely, 2^50686318564 is an apocalyptic number.

It is an amenable number.

50686318564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

50686318564 is a wasteful number, since it uses less digits than its factorization.

50686318564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810225674 (or 1810225672 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 52.

The spelling of 50686318564 in words is "fifty billion, six hundred eighty-six million, three hundred eighteen thousand, five hundred sixty-four".