12668638585863 has 32 divisors (see below), whose sum is σ = 18200152357632. Its totient is φ = 7792106400000.

The previous prime is 12668638585859. The next prime is 12668638585879. The reversal of 12668638585863 is 36858583686621.

12668638585863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12668638585863 - 2² = 12668638585859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668638585063) 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, 1073516563 + ... + 1073528363.

It is an arithmetic number, because the mean of its divisors is an integer number (568754761176).

Almost surely, 2^{12668638585863} is an apocalyptic number.

12668638585863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12668638585863 is a deficient number, since it is larger than the sum of its proper divisors (5531513771769).

12668638585863 is a wasteful number, since it uses less digits than its factorization.

12668638585863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23535.

The product of its digits is 2388787200, while the sum is 75.

The spelling of 12668638585863 in words is "twelve trillion, six hundred sixty-eight billion, six hundred thirty-eight million, five hundred eighty-five thousand, eight hundred sixty-three".