12689464592 has 20 divisors (see below), whose sum is σ = 28098100416. Its totient is φ = 5438341920.

The previous prime is 12689464511. The next prime is 12689464609. The reversal of 12689464592 is 29546498621.

12689464592 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12689464592² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56649284 + ... + 56649507.

Almost surely, 2^12689464592 is an apocalyptic number.

It is an amenable number.

12689464592 is an abundant number, since it is smaller than the sum of its proper divisors (15408635824).

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

12689464592 is a wasteful number, since it uses less digits than its factorization.

12689464592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113298806 (or 113298800 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 56.

The spelling of 12689464592 in words is "twelve billion, six hundred eighty-nine million, four hundred sixty-four thousand, five hundred ninety-two".