12856836766738 has 32 divisors (see below), whose sum is σ = 20383120800000. Its totient is φ = 6065229618000.

The previous prime is 12856836766733. The next prime is 12856836766811. The reversal of 12856836766738 is 83766763865821.

It is not an unprimeable number, because it can be changed into a prime (12856836766733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107710213 + ... + 107829511.

It is an arithmetic number, because the mean of its divisors is an integer number (636972525000).

Almost surely, 2^{12856836766738} is an apocalyptic number.

12856836766738 is a deficient number, since it is larger than the sum of its proper divisors (7526284033262).

12856836766738 is a wasteful number, since it uses less digits than its factorization.

12856836766738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130870.

The product of its digits is 2926264320, while the sum is 76.

The spelling of 12856836766738 in words is "twelve trillion, eight hundred fifty-six billion, eight hundred thirty-six million, seven hundred sixty-six thousand, seven hundred thirty-eight".