12936806894 has 16 divisors (see below), whose sum is σ = 21211424640. Its totient is φ = 5868671160.

The previous prime is 12936806893. The next prime is 12936806899. The reversal of 12936806894 is 49860863921.

It is a happy number.

It is a super-2 number, since 2×12936806894² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12936806893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573464 + ... + 595595.

It is an arithmetic number, because the mean of its divisors is an integer number (1325714040).

Almost surely, 2^12936806894 is an apocalyptic number.

12936806894 is a deficient number, since it is larger than the sum of its proper divisors (8274617746).

12936806894 is a wasteful number, since it uses less digits than its factorization.

12936806894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169575.

The product of its (nonzero) digits is 4478976, while the sum is 56.

The spelling of 12936806894 in words is "twelve billion, nine hundred thirty-six million, eight hundred six thousand, eight hundred ninety-four".