79017265942 has 4 divisors (see below), whose sum is σ = 118525898916. Its totient is φ = 39508632970.

The previous prime is 79017265931. The next prime is 79017265997. The reversal of 79017265942 is 24956271097.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 79017265942.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19754316484 + ... + 19754316487.

It is an arithmetic number, because the mean of its divisors is an integer number (29631474729).

Almost surely, 2^79017265942 is an apocalyptic number.

79017265942 is a deficient number, since it is larger than the sum of its proper divisors (39508632974).

79017265942 is a wasteful number, since it uses less digits than its factorization.

79017265942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39508632973.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 79017265942 in words is "seventy-nine billion, seventeen million, two hundred sixty-five thousand, nine hundred forty-two".