72999168588 has 36 divisors (see below), whose sum is σ = 184686098688. Its totient is φ = 24311901600.

The previous prime is 72999168551. The next prime is 72999168589. The reversal of 72999168588 is 88586199927.

72999168588 is a `hidden beast` number, since 7 + 29 + 9 + 9 + 16 + 8 + 588 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×72999168588² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72999168589) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 839431 + ... + 922302.

It is an arithmetic number, because the mean of its divisors is an integer number (5130169408).

Almost surely, 2^72999168588 is an apocalyptic number.

It is an amenable number.

72999168588 is an abundant number, since it is smaller than the sum of its proper divisors (111686930100).

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

72999168588 is a wasteful number, since it uses less digits than its factorization.

72999168588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762894 (or 1762889 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 72.

The spelling of 72999168588 in words is "seventy-two billion, nine hundred ninety-nine million, one hundred sixty-eight thousand, five hundred eighty-eight".