68242568 has 16 divisors (see below), whose sum is σ = 132367500. Its totient is φ = 32944576.

The previous prime is 68242553. The next prime is 68242571. The reversal of 68242568 is 86524286.

It can be written as a sum of positive squares in 2 ways, for example, as 59013124 + 9229444 = 7682^2 + 3038^2 .

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, 146843 + ... + 147306.

Almost surely, 2^68242568 is an apocalyptic number.

It is an amenable number.

68242568 is a deficient number, since it is larger than the sum of its proper divisors (64124932).

68242568 is a wasteful number, since it uses less digits than its factorization.

68242568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294184 (or 294180 counting only the distinct ones).

The product of its digits is 184320, while the sum is 41.

The square root of 68242568 is about 8260.9060035810. The cubic root of 68242568 is about 408.6502670448.

The spelling of 68242568 in words is "sixty-eight million, two hundred forty-two thousand, five hundred sixty-eight".