68585868 has 72 divisors (see below), whose sum is σ = 188684496. Its totient is φ = 20880000.

The previous prime is 68585863. The next prime is 68585879. The reversal of 68585868 is 86858586.

68585868 is a `hidden beast` number, since 6 + 8 + 58 + 586 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (68585863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46543 + ... + 47993.

It is an arithmetic number, because the mean of its divisors is an integer number (2620618).

Almost surely, 2^68585868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68585868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94342248).

68585868 is an abundant number, since it is smaller than the sum of its proper divisors (120098628).

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

68585868 is a wasteful number, since it uses less digits than its factorization.

68585868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1570 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 54.

The square root of 68585868 is about 8281.6585295459. The cubic root of 68585868 is about 409.3343710664.

The spelling of 68585868 in words is "sixty-eight million, five hundred eighty-five thousand, eight hundred sixty-eight".