12689392968 has 96 divisors (see below), whose sum is σ = 39299232960. Its totient is φ = 3623460480.

The previous prime is 12689392931. The next prime is 12689392987. The reversal of 12689392968 is 86929398621.

It is a super-2 number, since 2×12689392968² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1015398 + ... + 1027818.

It is an arithmetic number, because the mean of its divisors is an integer number (409367010).

Almost surely, 2^12689392968 is an apocalyptic number.

12689392968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12689392968 is an abundant number, since it is smaller than the sum of its proper divisors (26609839992).

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

12689392968 is a wasteful number, since it uses less digits than its factorization.

12689392968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14467 (or 14460 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 63.

The spelling of 12689392968 in words is "twelve billion, six hundred eighty-nine million, three hundred ninety-two thousand, nine hundred sixty-eight".