79912118842 has 8 divisors (see below), whose sum is σ = 121031947296. Its totient is φ = 39568136412.

The previous prime is 79912118837. The next prime is 79912118849. The reversal of 79912118842 is 24881121997.

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

It is a self number, because there is not a number n which added to its sum of digits gives 79912118842.

It is not an unprimeable number, because it can be changed into a prime (79912118849) 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, 193961248 + ... + 193961659.

It is an arithmetic number, because the mean of its divisors is an integer number (15128993412).

Almost surely, 2^79912118842 is an apocalyptic number.

79912118842 is a deficient number, since it is larger than the sum of its proper divisors (41119828454).

79912118842 is a wasteful number, since it uses less digits than its factorization.

79912118842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387923012.

The product of its digits is 580608, while the sum is 52.

The spelling of 79912118842 in words is "seventy-nine billion, nine hundred twelve million, one hundred eighteen thousand, eight hundred forty-two".