68508751017 has 8 divisors (see below), whose sum is σ = 104394287296. Its totient is φ = 39147857712.

The previous prime is 68508751013. The next prime is 68508751021. The reversal of 68508751017 is 71015780586.

It is an interprime number because it is at equal distance from previous prime (68508751013) and next prime (68508751021).

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

It is not a de Polignac number, because 68508751017 - 2² = 68508751013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68508751013) 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, 1631160718 + ... + 1631160759.

It is an arithmetic number, because the mean of its divisors is an integer number (13049285912).

Almost surely, 2^68508751017 is an apocalyptic number.

It is an amenable number.

68508751017 is a deficient number, since it is larger than the sum of its proper divisors (35885536279).

68508751017 is a wasteful number, since it uses less digits than its factorization.

68508751017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3262321487.

The product of its (nonzero) digits is 470400, while the sum is 48.

The spelling of 68508751017 in words is "sixty-eight billion, five hundred eight million, seven hundred fifty-one thousand, seventeen".