12643910359 has 32 divisors (see below), whose sum is σ = 13830436224. Its totient is φ = 11525690880.

The previous prime is 12643910329. The next prime is 12643910369. The reversal of 12643910359 is 95301934621.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12643910359 - 2⁷ = 12643910231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12643910329) 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, 19362477 + ... + 19363129.

It is an arithmetic number, because the mean of its divisors is an integer number (432201132).

Almost surely, 2^12643910359 is an apocalyptic number.

12643910359 is a deficient number, since it is larger than the sum of its proper divisors (1186525865).

12643910359 is a wasteful number, since it uses less digits than its factorization.

12643910359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147.

The product of its (nonzero) digits is 174960, while the sum is 43.

The spelling of 12643910359 in words is "twelve billion, six hundred forty-three million, nine hundred ten thousand, three hundred fifty-nine".