12876412638765 has 32 divisors (see below), whose sum is σ = 22188482338176. Its totient is φ = 6338747600640.

The previous prime is 12876412638743. The next prime is 12876412638769. The reversal of 12876412638765 is 56783621467821.

It is not a de Polignac number, because 12876412638765 - 2⁶ = 12876412638701 is a prime.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 12876412638696 and 12876412638705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12876412638769) 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, 906022 + ... + 5154968.

It is an arithmetic number, because the mean of its divisors is an integer number (693390073068).

Almost surely, 2^{12876412638765} is an apocalyptic number.

12876412638765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12876412638765 is a deficient number, since it is larger than the sum of its proper divisors (9312069699411).

12876412638765 is a wasteful number, since it uses less digits than its factorization.

12876412638765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264509.

The product of its digits is 162570240, while the sum is 66.

The spelling of 12876412638765 in words is "twelve trillion, eight hundred seventy-six billion, four hundred twelve million, six hundred thirty-eight thousand, seven hundred sixty-five".