72756423125 has 40 divisors (see below), whose sum is σ = 91988579232. Its totient is φ = 57521000000.

The previous prime is 72756423109. The next prime is 72756423127. The reversal of 72756423125 is 52132465727.

It is not a de Polignac number, because 72756423125 - 2⁴ = 72756423109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72756423127) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 61293782 + ... + 61294968.

Almost surely, 2^72756423125 is an apocalyptic number.

It is an amenable number.

72756423125 is a deficient number, since it is larger than the sum of its proper divisors (19232156107).

72756423125 is a wasteful number, since it uses less digits than its factorization.

72756423125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279 (or 2264 counting only the distinct ones).

The product of its digits is 705600, while the sum is 44.

The spelling of 72756423125 in words is "seventy-two billion, seven hundred fifty-six million, four hundred twenty-three thousand, one hundred twenty-five".