72538485516 has 72 divisors (see below), whose sum is σ = 210352606464. Its totient is φ = 20646459360.

The previous prime is 72538485511. The next prime is 72538485541. The reversal of 72538485516 is 61558483527.

72538485516 is a `hidden beast` number, since 7 + 2 + 5 + 3 + 84 + 8 + 551 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (72538485511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 480970 + ... + 613521.

Almost surely, 2^72538485516 is an apocalyptic number.

It is an amenable number.

72538485516 is an abundant number, since it is smaller than the sum of its proper divisors (137814120948).

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

72538485516 is a wasteful number, since it uses less digits than its factorization.

72538485516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094771 (or 1094766 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The spelling of 72538485516 in words is "seventy-two billion, five hundred thirty-eight million, four hundred eighty-five thousand, five hundred sixteen".