12386618564872 has 32 divisors (see below), whose sum is σ = 24582341347200. Its totient is φ = 5834929348800.

The previous prime is 12386618564839. The next prime is 12386618564917. The reversal of 12386618564872 is 27846581668321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12386618564798 and 12386618564807.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225085504 + ... + 225140527.

It is an arithmetic number, because the mean of its divisors is an integer number (768198167100).

Almost surely, 2^{12386618564872} is an apocalyptic number.

It is an amenable number.

12386618564872 is a deficient number, since it is larger than the sum of its proper divisors (12195722782328).

12386618564872 is a wasteful number, since it uses less digits than its factorization.

12386618564872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450226237 (or 450226233 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 67.

The spelling of 12386618564872 in words is "twelve trillion, three hundred eighty-six billion, six hundred eighteen million, five hundred sixty-four thousand, eight hundred seventy-two".