78791194112 has 160 divisors (see below), whose sum is σ = 168841648800. Its totient is φ = 36665294848.

The previous prime is 78791194109. The next prime is 78791194123. The reversal of 78791194112 is 21149119787.

It is a congruent number.

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, 46428848 + ... + 46430544.

It is an arithmetic number, because the mean of its divisors is an integer number (1055260305).

Almost surely, 2^78791194112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78791194112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84420824400).

78791194112 is an abundant number, since it is smaller than the sum of its proper divisors (90050454688).

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

78791194112 is a wasteful number, since it uses less digits than its factorization.

78791194112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856 (or 1840 counting only the distinct ones).

The product of its digits is 254016, while the sum is 50.

The spelling of 78791194112 in words is "seventy-eight billion, seven hundred ninety-one million, one hundred ninety-four thousand, one hundred twelve".