68188914 has 12 divisors (see below), whose sum is σ = 147742686. Its totient is φ = 22729632.

The previous prime is 68188909. The next prime is 68188943. The reversal of 68188914 is 41988186.

It can be written as a sum of positive squares in only one way, i.e., 50168889 + 18020025 = 7083^2 + 4245^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68188914.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1894119 + ... + 1894154.

Almost surely, 2^68188914 is an apocalyptic number.

68188914 is an abundant number, since it is smaller than the sum of its proper divisors (79553772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68188914 is a wasteful number, since it uses less digits than its factorization.

68188914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788281 (or 3788278 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 68188914 is about 8257.6579003977. The cubic root of 68188914 is about 408.5431419723.

The spelling of 68188914 in words is "sixty-eight million, one hundred eighty-eight thousand, nine hundred fourteen".