75899538432 has 88 divisors (see below), whose sum is σ = 224777794800. Its totient is φ = 25299836928.

The previous prime is 75899538409. The next prime is 75899538433. The reversal of 75899538432 is 23483599857.

75899538432 is a `hidden beast` number, since 7 + 5 + 8 + 99 + 538 + 4 + 3 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 75899538432.

It is not an unprimeable number, because it can be changed into a prime (75899538433) 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, 1344957 + ... + 1400252.

Almost surely, 2^75899538432 is an apocalyptic number.

75899538432 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

75899538432 is an abundant number, since it is smaller than the sum of its proper divisors (148878256368).

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

75899538432 is a wasteful number, since it uses less digits than its factorization.

75899538432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745238 (or 2745214 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The spelling of 75899538432 in words is "seventy-five billion, eight hundred ninety-nine million, five hundred thirty-eight thousand, four hundred thirty-two".