68342502979 has 8 divisors (see below), whose sum is σ = 75067280640. Its totient is φ = 61930505736.

The previous prime is 68342502971. The next prime is 68342502989. The reversal of 68342502979 is 97920524386.

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

It is a cyclic number.

It is not a de Polignac number, because 68342502979 - 2³ = 68342502971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68342502971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78194647 + ... + 78195520.

It is an arithmetic number, because the mean of its divisors is an integer number (9383410080).

Almost surely, 2^68342502979 is an apocalyptic number.

68342502979 is a deficient number, since it is larger than the sum of its proper divisors (6724777661).

68342502979 is a wasteful number, since it uses less digits than its factorization.

68342502979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156390209.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 68342502979 in words is "sixty-eight billion, three hundred forty-two million, five hundred two thousand, nine hundred seventy-nine".