79423831692 has 144 divisors (see below), whose sum is σ = 220304972160. Its totient is φ = 24950135808.

The previous prime is 79423831691. The next prime is 79423831699. The reversal of 79423831692 is 29613832497.

79423831692 is a `hidden beast` number, since 7 + 9 + 4 + 238 + 316 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (79423831691) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3553183 + ... + 3575465.

It is an arithmetic number, because the mean of its divisors is an integer number (1529895640).

Almost surely, 2^79423831692 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 79423831692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110152486080).

79423831692 is an abundant number, since it is smaller than the sum of its proper divisors (140881140468).

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

79423831692 is a wasteful number, since it uses less digits than its factorization.

79423831692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22514 (or 22500 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 79423831692 in words is "seventy-nine billion, four hundred twenty-three million, eight hundred thirty-one thousand, six hundred ninety-two".