72426642736231 has 32 divisors (see below), whose sum is σ = 85290358032000. Its totient is φ = 61472253024000.

The previous prime is 72426642736181. The next prime is 72426642736313. The reversal of 72426642736231 is 13263724662427.

It is not a de Polignac number, because 72426642736231 - 2³⁷ = 72289203782759 is a prime.

It is a super-2 number, since 2×72426642736231² (a number of 29 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 (72426642736531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59704731 + ... + 60905731.

It is an arithmetic number, because the mean of its divisors is an integer number (2665323688500).

Almost surely, 2^{72426642736231} is an apocalyptic number.

72426642736231 is a deficient number, since it is larger than the sum of its proper divisors (12863715295769).

72426642736231 is a wasteful number, since it uses less digits than its factorization.

72426642736231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202744 (or 1202730 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 55.

The spelling of 72426642736231 in words is "seventy-two trillion, four hundred twenty-six billion, six hundred forty-two million, seven hundred thirty-six thousand, two hundred thirty-one".