72967002557 has 16 divisors (see below), whose sum is σ = 77626553472. Its totient is φ = 68348958720.

The previous prime is 72967002539. The next prime is 72967002601. The reversal of 72967002557 is 75520076927.

It is a cyclic number.

It is not a de Polignac number, because 72967002557 - 2²⁸ = 72698567101 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 (72967002527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3547898 + ... + 3568404.

It is an arithmetic number, because the mean of its divisors is an integer number (4851659592).

Almost surely, 2^72967002557 is an apocalyptic number.

It is an amenable number.

72967002557 is a deficient number, since it is larger than the sum of its proper divisors (4659550915).

72967002557 is a wasteful number, since it uses less digits than its factorization.

72967002557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21508.

The product of its (nonzero) digits is 1852200, while the sum is 50.

The spelling of 72967002557 in words is "seventy-two billion, nine hundred sixty-seven million, two thousand, five hundred fifty-seven".