68868186 has 16 divisors (see below), whose sum is σ = 138534624. Its totient is φ = 22823024.

The previous prime is 68868181. The next prime is 68868193. The reversal of 68868186 is 68186886.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68868181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32136 + ... + 34211.

It is an arithmetic number, because the mean of its divisors is an integer number (8658414).

Almost surely, 2^68868186 is an apocalyptic number.

68868186 is an abundant number, since it is smaller than the sum of its proper divisors (69666438).

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

68868186 is a wasteful number, since it uses less digits than its factorization.

68868186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66525.

The product of its digits is 884736, while the sum is 51.

The square root of 68868186 is about 8298.6857995709. The cubic root of 68868186 is about 409.8952458930.

The spelling of 68868186 in words is "sixty-eight million, eight hundred sixty-eight thousand, one hundred eighty-six".