12636684268 has 12 divisors (see below), whose sum is σ = 23815289680. Its totient is φ = 5832315792.

The previous prime is 12636684253. The next prime is 12636684317. The reversal of 12636684268 is 86248663621.

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 243013159 = 12636684268 / (1 + 2 + 6 + 3 + 6 + 6 + 8 + 4 + 2 + 6 + 8).

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, 121506528 + ... + 121506631.

Almost surely, 2^12636684268 is an apocalyptic number.

It is an amenable number.

12636684268 is a deficient number, since it is larger than the sum of its proper divisors (11178605412).

12636684268 is a wasteful number, since it uses less digits than its factorization.

12636684268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243013176 (or 243013174 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 52.

The spelling of 12636684268 in words is "twelve billion, six hundred thirty-six million, six hundred eighty-four thousand, two hundred sixty-eight".