79688043717 has 16 divisors (see below), whose sum is σ = 108957592128. Its totient is φ = 51777290880.

The previous prime is 79688043683. The next prime is 79688043763. The reversal of 79688043717 is 71734088697.

It is not a de Polignac number, because 79688043717 - 2¹¹ = 79688041669 is a prime.

It is a super-2 number, since 2×79688043717² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79688063717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610528 + ... + 729465.

It is an arithmetic number, because the mean of its divisors is an integer number (6809849508).

Almost surely, 2^79688043717 is an apocalyptic number.

It is an amenable number.

79688043717 is a deficient number, since it is larger than the sum of its proper divisors (29269548411).

79688043717 is a wasteful number, since it uses less digits than its factorization.

79688043717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340500.

The product of its (nonzero) digits is 14224896, while the sum is 60.

The spelling of 79688043717 in words is "seventy-nine billion, six hundred eighty-eight million, forty-three thousand, seven hundred seventeen".