12864004372 has 12 divisors (see below), whose sum is σ = 22512913780. Its totient is φ = 6431743296.

The previous prime is 12864004369. The next prime is 12864004381. The reversal of 12864004372 is 27340046821.

It can be written as a sum of positive squares in 2 ways, for example, as 7738017156 + 5125987216 = 87966^2 + 71596^2 .

It is a super-2 number, since 2×12864004372² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86158 + ... + 182074.

Almost surely, 2^12864004372 is an apocalyptic number.

It is an amenable number.

12864004372 is a deficient number, since it is larger than the sum of its proper divisors (9648909408).

12864004372 is a wasteful number, since it uses less digits than its factorization.

12864004372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129450 (or 129448 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 12864004372 in words is "twelve billion, eight hundred sixty-four million, four thousand, three hundred seventy-two".