50171958564 has 96 divisors (see below), whose sum is σ = 146445793536. Its totient is φ = 13015226880.

The previous prime is 50171958559. The next prime is 50171958583. The reversal of 50171958564 is 46585917105.

It is a super-2 number, since 2×50171958564² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309987 + ... + 443210.

It is an arithmetic number, because the mean of its divisors is an integer number (1525477016).

Almost surely, 2^50171958564 is an apocalyptic number.

It is an amenable number.

50171958564 is an abundant number, since it is smaller than the sum of its proper divisors (96273834972).

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

50171958564 is a wasteful number, since it uses less digits than its factorization.

50171958564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753285 (or 753283 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 51.

The spelling of 50171958564 in words is "fifty billion, one hundred seventy-one million, nine hundred fifty-eight thousand, five hundred sixty-four".