72610558231 has 4 divisors (see below), whose sum is σ = 72615024000. Its totient is φ = 72606092464.

The previous prime is 72610558199. The next prime is 72610558243. The reversal of 72610558231 is 13285501627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13285501627 = 51431 ⋅258317.

It is a cyclic number.

It is not a de Polignac number, because 72610558231 - 2⁵ = 72610558199 is a prime.

It is a super-2 number, since 2×72610558231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72610558291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2208406 + ... + 2241043.

It is an arithmetic number, because the mean of its divisors is an integer number (18153756000).

Almost surely, 2^72610558231 is an apocalyptic number.

72610558231 is a deficient number, since it is larger than the sum of its proper divisors (4465769).

72610558231 is a wasteful number, since it uses less digits than its factorization.

72610558231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4465768.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 72610558231 in words is "seventy-two billion, six hundred ten million, five hundred fifty-eight thousand, two hundred thirty-one".