68259329817 has 16 divisors (see below), whose sum is σ = 104103690240. Its totient is φ = 38971778832.

The previous prime is 68259329791. The next prime is 68259329819. The reversal of 68259329817 is 71892395286.

It is not a de Polignac number, because 68259329817 - 2¹⁹ = 68258805529 is a prime.

It is a super-2 number, since 2×68259329817² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68259329819) 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, 1373017 + ... + 1421862.

It is an arithmetic number, because the mean of its divisors is an integer number (6506480640).

Almost surely, 2^68259329817 is an apocalyptic number.

It is an amenable number.

68259329817 is a deficient number, since it is larger than the sum of its proper divisors (35844360423).

68259329817 is a wasteful number, since it uses less digits than its factorization.

68259329817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796052.

The product of its digits is 13063680, while the sum is 60.

The spelling of 68259329817 in words is "sixty-eight billion, two hundred fifty-nine million, three hundred twenty-nine thousand, eight hundred seventeen".