12844987164 has 36 divisors (see below), whose sum is σ = 34178184040. Its totient is φ = 4056311520.

The previous prime is 12844987121. The next prime is 12844987231. The reversal of 12844987164 is 46178944821.

12844987164 is a `hidden beast` number, since 1 + 2 + 84 + 498 + 71 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12844987164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9388927 + ... + 9390294.

Almost surely, 2^12844987164 is an apocalyptic number.

It is an amenable number.

12844987164 is an abundant number, since it is smaller than the sum of its proper divisors (21333196876).

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

12844987164 is a wasteful number, since it uses less digits than its factorization.

12844987164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18779250 (or 18779245 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The spelling of 12844987164 in words is "twelve billion, eight hundred forty-four million, nine hundred eighty-seven thousand, one hundred sixty-four".