12642905699 has 8 divisors (see below), whose sum is σ = 12806074560. Its totient is φ = 12479815296.

The previous prime is 12642905669. The next prime is 12642905701. The reversal of 12642905699 is 99650924621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12642905699 - 2²⁴ = 12626128483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12642905699.

It is not an unprimeable number, because it can be changed into a prime (12642905629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349067 + ... + 383579.

It is an arithmetic number, because the mean of its divisors is an integer number (1600759320).

Almost surely, 2^12642905699 is an apocalyptic number.

12642905699 is a deficient number, since it is larger than the sum of its proper divisors (163168861).

12642905699 is an equidigital number, since it uses as much as digits as its factorization.

12642905699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39229.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 12642905699 in words is "twelve billion, six hundred forty-two million, nine hundred five thousand, six hundred ninety-nine".