75500117888 has 64 divisors (see below), whose sum is σ = 163466872800. Its totient is φ = 34526435328.

The previous prime is 75500117881. The next prime is 75500117893. The reversal of 75500117888 is 88871100557.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×75500117888² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75500117881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26756 + ... + 389507.

Almost surely, 2^75500117888 is an apocalyptic number.

It is an amenable number.

75500117888 is an abundant number, since it is smaller than the sum of its proper divisors (87966754912).

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

75500117888 is a wasteful number, since it uses less digits than its factorization.

75500117888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416399 (or 416387 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 50.

The spelling of 75500117888 in words is "seventy-five billion, five hundred million, one hundred seventeen thousand, eight hundred eighty-eight".