12976798799856 has 160 divisors (see below), whose sum is σ = 35930741856768. Its totient is φ = 4025214673920.

The previous prime is 12976798799849. The next prime is 12976798799857. The reversal of 12976798799856 is 65899789767921.

It is a self number, because there is not a number n which added to its sum of digits gives 12976798799856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12976798799857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 483095866 + ... + 483122726.

Almost surely, 2^{12976798799856} is an apocalyptic number.

12976798799856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12976798799856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17965370928384).

12976798799856 is an abundant number, since it is smaller than the sum of its proper divisors (22953943056912).

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

12976798799856 is a wasteful number, since it uses less digits than its factorization.

12976798799856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38759 (or 38753 counting only the distinct ones).

The product of its digits is 51849745920, while the sum is 93.

The spelling of 12976798799856 in words is "twelve trillion, nine hundred seventy-six billion, seven hundred ninety-eight million, seven hundred ninety-nine thousand, eight hundred fifty-six".