12697056894 has 32 divisors (see below), whose sum is σ = 25547040000. Its totient is φ = 4206907584.

The previous prime is 12697056871. The next prime is 12697056943. The reversal of 12697056894 is 49865079621.

It is a super-2 number, since 2×12697056894² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1343317 + ... + 1352735.

It is an arithmetic number, because the mean of its divisors is an integer number (798345000).

Almost surely, 2^12697056894 is an apocalyptic number.

12697056894 is an abundant number, since it is smaller than the sum of its proper divisors (12849983106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12697056894 is a wasteful number, since it uses less digits than its factorization.

12697056894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10752.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 12697056894 in words is "twelve billion, six hundred ninety-seven million, fifty-six thousand, eight hundred ninety-four".