13637679879 has 4 divisors (see below), whose sum is σ = 18183573176. Its totient is φ = 9091786584.

The previous prime is 13637679841. The next prime is 13637679883. The reversal of 13637679879 is 97897673631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13637679879 - 2⁸ = 13637679623 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 (13637679889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2272946644 + ... + 2272946649.

It is an arithmetic number, because the mean of its divisors is an integer number (4545893294).

Almost surely, 2^13637679879 is an apocalyptic number.

13637679879 is a deficient number, since it is larger than the sum of its proper divisors (4545893297).

13637679879 is an equidigital number, since it uses as much as digits as its factorization.

13637679879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545893296.

The product of its digits is 72013536, while the sum is 66.

The spelling of 13637679879 in words is "thirteen billion, six hundred thirty-seven million, six hundred seventy-nine thousand, eight hundred seventy-nine".