68115117 has 16 divisors (see below), whose sum is σ = 104400000. Its totient is φ = 38695872.

The previous prime is 68115109. The next prime is 68115119. The reversal of 68115117 is 71151186.

It is not a de Polignac number, because 68115117 - 2³ = 68115109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68115119) 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, 5742 + ... + 13007.

It is an arithmetic number, because the mean of its divisors is an integer number (6525000).

Almost surely, 2^68115117 is an apocalyptic number.

It is an amenable number.

68115117 is a deficient number, since it is larger than the sum of its proper divisors (36284883).

68115117 is a wasteful number, since it uses less digits than its factorization.

68115117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18932.

The product of its digits is 1680, while the sum is 30.

The square root of 68115117 is about 8253.1882930174. The cubic root of 68115117 is about 408.3957077376.

The spelling of 68115117 in words is "sixty-eight million, one hundred fifteen thousand, one hundred seventeen".