68879718065 has 8 divisors (see below), whose sum is σ = 82734312768. Its totient is φ = 55051340400.

The previous prime is 68879718029. The next prime is 68879718067. The reversal of 68879718065 is 56081797886.

It is a happy number.

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

It is not a de Polignac number, because 68879718065 - 2¹⁰ = 68879717041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68879717992 and 68879718010.

It is not an unprimeable number, because it can be changed into a prime (68879718067) 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, 6548477 + ... + 6558986.

It is an arithmetic number, because the mean of its divisors is an integer number (10341789096).

Almost surely, 2^68879718065 is an apocalyptic number.

It is an amenable number.

68879718065 is a deficient number, since it is larger than the sum of its proper divisors (13854594703).

68879718065 is a wasteful number, since it uses less digits than its factorization.

68879718065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13108519.

The product of its (nonzero) digits is 40642560, while the sum is 65.

The spelling of 68879718065 in words is "sixty-eight billion, eight hundred seventy-nine million, seven hundred eighteen thousand, sixty-five".