68756458765 has 8 divisors (see below), whose sum is σ = 82695697920. Its totient is φ = 54879868752.

The previous prime is 68756458703. The next prime is 68756458777. The reversal of 68756458765 is 56785465786.

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 68756458765 - 2¹⁹ = 68755934477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68756458765.

It is a congruent 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, 15659869 + ... + 15664258.

It is an arithmetic number, because the mean of its divisors is an integer number (10336962240).

Almost surely, 2^68756458765 is an apocalyptic number.

It is an amenable number.

68756458765 is a deficient number, since it is larger than the sum of its proper divisors (13939239155).

68756458765 is a wasteful number, since it uses less digits than its factorization.

68756458765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31324571.

The product of its digits is 338688000, while the sum is 67.

The spelling of 68756458765 in words is "sixty-eight billion, seven hundred fifty-six million, four hundred fifty-eight thousand, seven hundred sixty-five".