79765717773 has 8 divisors (see below), whose sum is σ = 121547760448. Its totient is φ = 45580410144.

The previous prime is 79765717763. The next prime is 79765717777. The reversal of 79765717773 is 37771756797.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79765717773 - 2⁵ = 79765717741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79765717777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1899183736 + ... + 1899183777.

It is an arithmetic number, because the mean of its divisors is an integer number (15193470056).

Almost surely, 2^79765717773 is an apocalyptic number.

It is an amenable number.

79765717773 is a deficient number, since it is larger than the sum of its proper divisors (41782042675).

79765717773 is a wasteful number, since it uses less digits than its factorization.

79765717773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798367523.

The product of its digits is 95295690, while the sum is 66.

The spelling of 79765717773 in words is "seventy-nine billion, seven hundred sixty-five million, seven hundred seventeen thousand, seven hundred seventy-three".