68079791 has 18 divisors (see below), whose sum is σ = 76508640. Its totient is φ = 60549216.

The previous prime is 68079773. The next prime is 68079799. The reversal of 68079791 is 19797086.

It is not a de Polignac number, because 68079791 - 2²⁶ = 970927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68079799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 141890 + ... + 142368.

It is an arithmetic number, because the mean of its divisors is an integer number (4250480).

Almost surely, 2^68079791 is an apocalyptic number.

68079791 is a deficient number, since it is larger than the sum of its proper divisors (8428849).

68079791 is a wasteful number, since it uses less digits than its factorization.

68079791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 68079791 is about 8251.0478728462. The cubic root of 68079791 is about 408.3250945258.

The spelling of 68079791 in words is "sixty-eight million, seventy-nine thousand, seven hundred ninety-one".