79716910669 has 4 divisors (see below), whose sum is σ = 86963902560. Its totient is φ = 72469918780.

The previous prime is 79716910631. The next prime is 79716910727. The reversal of 79716910669 is 96601961797.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79716910669 - 2⁷ = 79716910541 is a prime.

It is a super-2 number, since 2×79716910669² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79716910369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3623495929 + ... + 3623495950.

It is an arithmetic number, because the mean of its divisors is an integer number (21740975640).

Almost surely, 2^79716910669 is an apocalyptic number.

It is an amenable number.

79716910669 is a deficient number, since it is larger than the sum of its proper divisors (7246991891).

79716910669 is a wasteful number, since it uses less digits than its factorization.

79716910669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7246991890.

The product of its (nonzero) digits is 7715736, while the sum is 61.

The spelling of 79716910669 in words is "seventy-nine billion, seven hundred sixteen million, nine hundred ten thousand, six hundred sixty-nine".