864272865024 has 144 divisors (see below), whose sum is σ = 2666929440000. Its totient is φ = 275565210624.

The previous prime is 864272865007. The next prime is 864272865031. The reversal of 864272865024 is 420568272468.

864272865024 is a `hidden beast` number, since 8 + 64 + 2 + 72 + 8 + 6 + 502 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 2559274 + ... + 2877225.

Almost surely, 2^864272865024 is an apocalyptic number.

It is an amenable number.

864272865024 is an abundant number, since it is smaller than the sum of its proper divisors (1802656574976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864272865024 is a wasteful number, since it uses less digits than its factorization.

864272865024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5436547 (or 5436527 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 54.

The spelling of 864272865024 in words is "eight hundred sixty-four billion, two hundred seventy-two million, eight hundred sixty-five thousand, twenty-four".