79742319723 has 40 divisors (see below), whose sum is σ = 132080872176. Its totient is φ = 47536372800.

The previous prime is 79742319691. The next prime is 79742319731. The reversal of 79742319723 is 32791324797.

79742319723 is a `hidden beast` number, since 7 + 9 + 7 + 423 + 197 + 23 = 666.

It is not a de Polignac number, because 79742319723 - 2⁵ = 79742319691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79742319723.

It is not an unprimeable number, because it can be changed into a prime (79742319323) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 679236 + ... + 787937.

Almost surely, 2^79742319723 is an apocalyptic number.

79742319723 is a deficient number, since it is larger than the sum of its proper divisors (52338552453).

79742319723 is a wasteful number, since it uses less digits than its factorization.

79742319723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467257 (or 1467248 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 54.

The spelling of 79742319723 in words is "seventy-nine billion, seven hundred forty-two million, three hundred nineteen thousand, seven hundred twenty-three".