68917065079 has 16 divisors (see below), whose sum is σ = 70383995136. Its totient is φ = 67466880000.

The previous prime is 68917065067. The next prime is 68917065083. The reversal of 68917065079 is 97056071986.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68917065079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68917065379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12743194 + ... + 12748600.

It is an arithmetic number, because the mean of its divisors is an integer number (4398999696).

Almost surely, 2^68917065079 is an apocalyptic number.

68917065079 is a deficient number, since it is larger than the sum of its proper divisors (1466930057).

68917065079 is a wasteful number, since it uses less digits than its factorization.

68917065079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6906.

The product of its (nonzero) digits is 5715360, while the sum is 58.

The spelling of 68917065079 in words is "sixty-eight billion, nine hundred seventeen million, sixty-five thousand, seventy-nine".