68340674159 has 16 divisors (see below), whose sum is σ = 72239109120. Its totient is φ = 64546497120.

The previous prime is 68340674147. The next prime is 68340674189. The reversal of 68340674159 is 95147604386.

It is not a de Polignac number, because 68340674159 - 2⁸ = 68340673903 is a prime.

It is a super-2 number, since 2×68340674159² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68340674159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68340674189) 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, 2827094 + ... + 2851164.

It is an arithmetic number, because the mean of its divisors is an integer number (4514944320).

Almost surely, 2^68340674159 is an apocalyptic number.

68340674159 is a deficient number, since it is larger than the sum of its proper divisors (3898434961).

68340674159 is a wasteful number, since it uses less digits than its factorization.

68340674159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26230.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 68340674159 in words is "sixty-eight billion, three hundred forty million, six hundred seventy-four thousand, one hundred fifty-nine".