68122769915 has 8 divisors (see below), whose sum is σ = 81863943408. Its totient is φ = 54420469600.

The previous prime is 68122769887. The next prime is 68122769927. The reversal of 68122769915 is 51996722186.

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

It is not a de Polignac number, because 68122769915 - 2⁶ = 68122769851 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9714437 + ... + 9721446.

It is an arithmetic number, because the mean of its divisors is an integer number (10232992926).

Almost surely, 2^68122769915 is an apocalyptic number.

68122769915 is a deficient number, since it is larger than the sum of its proper divisors (13741173493).

68122769915 is a wasteful number, since it uses less digits than its factorization.

68122769915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19436589.

The product of its digits is 3265920, while the sum is 56.

The spelling of 68122769915 in words is "sixty-eight billion, one hundred twenty-two million, seven hundred sixty-nine thousand, nine hundred fifteen".