68861136 has 20 divisors (see below), whose sum is σ = 177891392. Its totient is φ = 22953696.

The previous prime is 68861129. The next prime is 68861141. The reversal of 68861136 is 63116886.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 68861094 and 68861103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717256 + ... + 717351.

Almost surely, 2^68861136 is an apocalyptic number.

It is an amenable number.

68861136 is an abundant number, since it is smaller than the sum of its proper divisors (109030256).

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

68861136 is a wasteful number, since it uses less digits than its factorization.

68861136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434618 (or 1434612 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 68861136 is about 8298.2610226481. The cubic root of 68861136 is about 409.8812584954.

The spelling of 68861136 in words is "sixty-eight million, eight hundred sixty-one thousand, one hundred thirty-six".