12568374081 has 24 divisors (see below), whose sum is σ = 18991477440. Its totient is φ = 7994375136.

The previous prime is 12568374079. The next prime is 12568374101. The reversal of 12568374081 is 18047386521.

12568374081 is a `hidden beast` number, since 1 + 2 + 568 + 3 + 7 + 4 + 0 + 81 = 666.

It is not a de Polignac number, because 12568374081 - 2¹ = 12568374079 is a prime.

It is a super-2 number, since 2×12568374081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12568374031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5710 + ... + 158648.

It is an arithmetic number, because the mean of its divisors is an integer number (791311560).

Almost surely, 2^12568374081 is an apocalyptic number.

It is an amenable number.

12568374081 is a deficient number, since it is larger than the sum of its proper divisors (6423103359).

12568374081 is a wasteful number, since it uses less digits than its factorization.

12568374081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153365 (or 153362 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 12568374081 in words is "twelve billion, five hundred sixty-eight million, three hundred seventy-four thousand, eighty-one".