68564812 has 12 divisors (see below), whose sum is σ = 121632616. Its totient is φ = 33812640.

The previous prime is 68564789. The next prime is 68564813. The reversal of 68564812 is 21846586.

It is a super-2 number, since 2×68564812² = 9402266889190688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68564813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117114 + ... + 117697.

Almost surely, 2^68564812 is an apocalyptic number.

It is an amenable number.

68564812 is a deficient number, since it is larger than the sum of its proper divisors (53067804).

68564812 is a wasteful number, since it uses less digits than its factorization.

68564812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234888 (or 234886 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 68564812 is about 8280.3871890148. The cubic root of 68564812 is about 409.2924779528.

The spelling of 68564812 in words is "sixty-eight million, five hundred sixty-four thousand, eight hundred twelve".