12679982051656 has 32 divisors (see below), whose sum is σ = 23872866431040. Its totient is φ = 6313899492288.

The previous prime is 12679982051651. The next prime is 12679982051699. The reversal of 12679982051656 is 65615028997621.

It is a junction number, because it is equal to n+sod(n) for n = 12679982051591 and 12679982051600.

It is not an unprimeable number, because it can be changed into a prime (12679982051651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5759950 + ... + 7650946.

It is an arithmetic number, because the mean of its divisors is an integer number (746027075970).

Almost surely, 2^{12679982051656} is an apocalyptic number.

It is an amenable number.

12679982051656 is a deficient number, since it is larger than the sum of its proper divisors (11192884379384).

12679982051656 is a wasteful number, since it uses less digits than its factorization.

12679982051656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894453 (or 1894449 counting only the distinct ones).

The product of its (nonzero) digits is 97977600, while the sum is 67.

The spelling of 12679982051656 in words is "twelve trillion, six hundred seventy-nine billion, nine hundred eighty-two million, fifty-one thousand, six hundred fifty-six".