12626942643 has 72 divisors (see below), whose sum is σ = 21852979200. Its totient is φ = 7002174816.

The previous prime is 12626942579. The next prime is 12626942663. The reversal of 12626942643 is 34624962621.

12626942643 is a `hidden beast` number, since 12 + 626 + 9 + 4 + 2 + 6 + 4 + 3 = 666.

It is not a de Polignac number, because 12626942643 - 2⁶ = 12626942579 is a prime.

It is a super-2 number, since 2×12626942643² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12626942663) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2052430 + ... + 2058572.

It is an arithmetic number, because the mean of its divisors is an integer number (303513600).

Almost surely, 2^12626942643 is an apocalyptic number.

12626942643 is a deficient number, since it is larger than the sum of its proper divisors (9226036557).

12626942643 is a wasteful number, since it uses less digits than its factorization.

12626942643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301 (or 6291 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The spelling of 12626942643 in words is "twelve billion, six hundred twenty-six million, nine hundred forty-two thousand, six hundred forty-three".