68568564 has 24 divisors (see below), whose sum is σ = 163896768. Its totient is φ = 22298560.

The previous prime is 68568551. The next prime is 68568569. The reversal of 68568564 is 46586586.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68568569) 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, 69192 + ... + 70175.

It is an arithmetic number, because the mean of its divisors is an integer number (6829032).

Almost surely, 2^68568564 is an apocalyptic number.

It is an amenable number.

68568564 is an abundant number, since it is smaller than the sum of its proper divisors (95328204).

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

68568564 is a wasteful number, since it uses less digits than its factorization.

68568564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139415 (or 139413 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The square root of 68568564 is about 8280.6137453694. The cubic root of 68568564 is about 409.2999435771.

The spelling of 68568564 in words is "sixty-eight million, five hundred sixty-eight thousand, five hundred sixty-four".