12688694975 has 12 divisors (see below), whose sum is σ = 17164344120. Its totient is φ = 9228141600.

The previous prime is 12688694959. The next prime is 12688694981. The reversal of 12688694975 is 57949688621.

It is not a de Polignac number, because 12688694975 - 2⁴ = 12688694959 is a prime.

It is a super-2 number, since 2×12688694975² (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 11 ways as a sum of consecutive naturals, for example, 23070080 + ... + 23070629.

It is an arithmetic number, because the mean of its divisors is an integer number (1430362010).

Almost surely, 2^12688694975 is an apocalyptic number.

12688694975 is a deficient number, since it is larger than the sum of its proper divisors (4475649145).

12688694975 is a wasteful number, since it uses less digits than its factorization.

12688694975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46140730 (or 46140725 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 65.

The spelling of 12688694975 in words is "twelve billion, six hundred eighty-eight million, six hundred ninety-four thousand, nine hundred seventy-five".