72700982431 has 32 divisors (see below), whose sum is σ = 92894976000. Its totient is φ = 56402065440.

The previous prime is 72700982381. The next prime is 72700982449. The reversal of 72700982431 is 13428900727.

It is not a de Polignac number, because 72700982431 - 2¹⁵ = 72700949663 is a prime.

It is a super-2 number, since 2×72700982431² (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 (72700982491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 821946 + ... + 906088.

It is an arithmetic number, because the mean of its divisors is an integer number (2902968000).

Almost surely, 2^72700982431 is an apocalyptic number.

72700982431 is a deficient number, since it is larger than the sum of its proper divisors (20193993569).

72700982431 is a wasteful number, since it uses less digits than its factorization.

72700982431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84404 (or 84390 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 72700982431 in words is "seventy-two billion, seven hundred million, nine hundred eighty-two thousand, four hundred thirty-one".