68868522 has 32 divisors (see below), whose sum is σ = 153543360. Its totient is φ = 22880880.

The previous prime is 68868511. The next prime is 68868539. The reversal of 68868522 is 22586886.

68868522 is a `hidden beast` number, since 68 + 8 + 68 + 522 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15948 + ... + 19800.

It is an arithmetic number, because the mean of its divisors is an integer number (4798230).

Almost surely, 2^68868522 is an apocalyptic number.

68868522 is an abundant number, since it is smaller than the sum of its proper divisors (84674838).

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

68868522 is a wasteful number, since it uses less digits than its factorization.

68868522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195 (or 4189 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 68868522 is about 8298.7060437155. The cubic root of 68868522 is about 409.8959125026.

The spelling of 68868522 in words is "sixty-eight million, eight hundred sixty-eight thousand, five hundred twenty-two".