13806179999 has 4 divisors (see below), whose sum is σ = 13807206336. Its totient is φ = 13805153664.

The previous prime is 13806179987. The next prime is 13806180001. The reversal of 13806179999 is 99997160831.

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 13806179999 - 2⁸ = 13806179743 is a prime.

It is a super-2 number, since 2×13806179999² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13806179599) 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, 492719 + ... + 519984.

It is an arithmetic number, because the mean of its divisors is an integer number (3451801584).

Almost surely, 2^13806179999 is an apocalyptic number.

13806179999 is a deficient number, since it is larger than the sum of its proper divisors (1026337).

13806179999 is a wasteful number, since it uses less digits than its factorization.

13806179999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026336.

The product of its (nonzero) digits is 6613488, while the sum is 62.

The spelling of 13806179999 in words is "thirteen billion, eight hundred six million, one hundred seventy-nine thousand, nine hundred ninety-nine".