79316881917 has 64 divisors (see below), whose sum is σ = 133115490816. Its totient is φ = 40898027520.

The previous prime is 79316881859. The next prime is 79316881937. The reversal of 79316881917 is 71918861397.

It is not a de Polignac number, because 79316881917 - 2¹¹ = 79316879869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79316881937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2234367 + ... + 2269587.

It is an arithmetic number, because the mean of its divisors is an integer number (2079929544).

Almost surely, 2^79316881917 is an apocalyptic number.

It is an amenable number.

79316881917 is a deficient number, since it is larger than the sum of its proper divisors (53798608899).

79316881917 is a wasteful number, since it uses less digits than its factorization.

79316881917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35430.

The product of its digits is 4572288, while the sum is 60.

The spelling of 79316881917 in words is "seventy-nine billion, three hundred sixteen million, eight hundred eighty-one thousand, nine hundred seventeen".