72507570875 has 32 divisors (see below), whose sum is σ = 92350964160. Its totient is φ = 56816448000.

The previous prime is 72507570851. The next prime is 72507570881. The reversal of 72507570875 is 57807570527.

It is not a de Polignac number, because 72507570875 - 2²⁴ = 72490793659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

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, 4092035 + ... + 4109715.

It is an arithmetic number, because the mean of its divisors is an integer number (2885967630).

Almost surely, 2^72507570875 is an apocalyptic number.

72507570875 is a deficient number, since it is larger than the sum of its proper divisors (19843393285).

72507570875 is a wasteful number, since it uses less digits than its factorization.

72507570875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18368 (or 18358 counting only the distinct ones).

The product of its (nonzero) digits is 4802000, while the sum is 53.

The spelling of 72507570875 in words is "seventy-two billion, five hundred seven million, five hundred seventy thousand, eight hundred seventy-five".