68129079 has 8 divisors (see below), whose sum is σ = 95619840. Its totient is φ = 43028856.

The previous prime is 68129069. The next prime is 68129093. The reversal of 68129079 is 97092186.

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

It is not a de Polignac number, because 68129079 - 2⁴ = 68129063 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 68129079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68129069) 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 7 ways as a sum of consecutive naturals, for example, 597567 + ... + 597680.

It is an arithmetic number, because the mean of its divisors is an integer number (11952480).

Almost surely, 2^68129079 is an apocalyptic number.

68129079 is a deficient number, since it is larger than the sum of its proper divisors (27490761).

68129079 is a wasteful number, since it uses less digits than its factorization.

68129079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195269.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 68129079 is about 8254.0341046061. The cubic root of 68129079 is about 408.4236096756.

The spelling of 68129079 in words is "sixty-eight million, one hundred twenty-nine thousand, seventy-nine".