79876639879 has 8 divisors (see below), whose sum is σ = 80522864208. Its totient is φ = 79231331520.

The previous prime is 79876639877. The next prime is 79876639891. The reversal of 79876639879 is 97893667897.

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 79876639879 - 2¹ = 79876639877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79876639799 and 79876639808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79876639877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53337 + ... + 403234.

It is an arithmetic number, because the mean of its divisors is an integer number (10065358026).

Almost surely, 2^79876639879 is an apocalyptic number.

79876639879 is a deficient number, since it is larger than the sum of its proper divisors (646224329).

79876639879 is a wasteful number, since it uses less digits than its factorization.

79876639879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457985.

The product of its digits is 1728324864, while the sum is 79.

The spelling of 79876639879 in words is "seventy-nine billion, eight hundred seventy-six million, six hundred thirty-nine thousand, eight hundred seventy-nine".