79108157124 has 18 divisors (see below), whose sum is σ = 199967841710. Its totient is φ = 26369385696.

The previous prime is 79108157111. The next prime is 79108157129. The reversal of 79108157124 is 42175180197.

It is a happy number.

79108157124 is a `hidden beast` number, since 79 + 1 + 0 + 8 + 1 + 571 + 2 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 79101562500 + 6594624 = 281250^2 + 2568^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 79108157124.

It is not an unprimeable number, because it can be changed into a prime (79108157129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1098724369 + ... + 1098724440.

Almost surely, 2^79108157124 is an apocalyptic number.

It is an amenable number.

79108157124 is an abundant number, since it is smaller than the sum of its proper divisors (120859684586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79108157124 is a wasteful number, since it uses less digits than its factorization.

79108157124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197448819 (or 2197448814 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The spelling of 79108157124 in words is "seventy-nine billion, one hundred eight million, one hundred fifty-seven thousand, one hundred twenty-four".