12646036422 has 12 divisors (see below), whose sum is σ = 27399745620. Its totient is φ = 4215345468.

The previous prime is 12646036391. The next prime is 12646036427. The reversal of 12646036422 is 22463064621.

12646036422 is a `hidden beast` number, since 1 + 2 + 6 + 4 + 6 + 0 + 3 + 642 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12646036427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 351278772 + ... + 351278807.

It is an arithmetic number, because the mean of its divisors is an integer number (2283312135).

Almost surely, 2^12646036422 is an apocalyptic number.

12646036422 is an abundant number, since it is smaller than the sum of its proper divisors (14753709198).

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

12646036422 is a wasteful number, since it uses less digits than its factorization.

12646036422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702557587 (or 702557584 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 12646036422 in words is "twelve billion, six hundred forty-six million, thirty-six thousand, four hundred twenty-two".