72864000015 has 16 divisors (see below), whose sum is σ = 117297633408. Its totient is φ = 38622388896.

The previous prime is 72863999987. The next prime is 72864000029. The reversal of 72864000015 is 51000046827.

It is not a de Polignac number, because 72864000015 - 2⁶ = 72863999951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72864000015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14898169 + ... + 14903058.

It is an arithmetic number, because the mean of its divisors is an integer number (7331102088).

Almost surely, 2^72864000015 is an apocalyptic number.

72864000015 is a deficient number, since it is larger than the sum of its proper divisors (44433633393).

72864000015 is a wasteful number, since it uses less digits than its factorization.

72864000015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29801398.

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 72864000015 in words is "seventy-two billion, eight hundred sixty-four million, fifteen", and thus it is an aban number.