72511128295 has 4 divisors (see below), whose sum is σ = 87013353960. Its totient is φ = 58008902632.

The previous prime is 72511128289. The next prime is 72511128323. The reversal of 72511128295 is 59282111527.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72511128295 is a prime.

It is a super-2 number, since 2×72511128295² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7251112825 + ... + 7251112834.

It is an arithmetic number, because the mean of its divisors is an integer number (21753338490).

Almost surely, 2^72511128295 is an apocalyptic number.

72511128295 is a deficient number, since it is larger than the sum of its proper divisors (14502225665).

72511128295 is a wasteful number, since it uses less digits than its factorization.

72511128295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14502225664.

The product of its digits is 100800, while the sum is 43.

The spelling of 72511128295 in words is "seventy-two billion, five hundred eleven million, one hundred twenty-eight thousand, two hundred ninety-five".