79889854234 has 32 divisors (see below), whose sum is σ = 122412513600. Its totient is φ = 39092148480.

The previous prime is 79889854199. The next prime is 79889854279. The reversal of 79889854234 is 43245898897.

It is a self number, because there is not a number n which added to its sum of digits gives 79889854234.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38611752 + ... + 38613820.

It is an arithmetic number, because the mean of its divisors is an integer number (3825391050).

Almost surely, 2^79889854234 is an apocalyptic number.

79889854234 is a deficient number, since it is larger than the sum of its proper divisors (42522659366).

79889854234 is a wasteful number, since it uses less digits than its factorization.

79889854234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438.

The product of its digits is 139345920, while the sum is 67.

The spelling of 79889854234 in words is "seventy-nine billion, eight hundred eighty-nine million, eight hundred fifty-four thousand, two hundred thirty-four".