68968834215 has 16 divisors (see below), whose sum is σ = 110354660736. Its totient is φ = 36781869600.

The previous prime is 68968834133. The next prime is 68968834219. The reversal of 68968834215 is 51243886986.

It is not a de Polignac number, because 68968834215 - 2⁸ = 68968833959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68968834219) 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, 351660 + ... + 511470.

It is an arithmetic number, because the mean of its divisors is an integer number (6897166296).

Almost surely, 2^68968834215 is an apocalyptic number.

68968834215 is a deficient number, since it is larger than the sum of its proper divisors (41385826521).

68968834215 is a wasteful number, since it uses less digits than its factorization.

68968834215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188590.

The product of its digits is 19906560, while the sum is 60.

The spelling of 68968834215 in words is "sixty-eight billion, nine hundred sixty-eight million, eight hundred thirty-four thousand, two hundred fifteen".