13886905579 has 4 divisors (see below), whose sum is σ = 14122276920. Its totient is φ = 13651534240.

The previous prime is 13886905553. The next prime is 13886905597. The reversal of 13886905579 is 97550968831.

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

It is a cyclic number.

It is not a de Polignac number, because 13886905579 - 2⁵ = 13886905547 is a prime.

It is a super-2 number, since 2×13886905579² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13886305579) 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, 117685582 + ... + 117685699.

It is an arithmetic number, because the mean of its divisors is an integer number (3530569230).

Almost surely, 2^13886905579 is an apocalyptic number.

13886905579 is a deficient number, since it is larger than the sum of its proper divisors (235371341).

13886905579 is an equidigital number, since it uses as much as digits as its factorization.

13886905579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235371340.

The product of its (nonzero) digits is 16329600, while the sum is 61.

The spelling of 13886905579 in words is "thirteen billion, eight hundred eighty-six million, nine hundred five thousand, five hundred seventy-nine".