68543868 has 24 divisors (see below), whose sum is σ = 168353920. Its totient is φ = 21645360.

The previous prime is 68543843. The next prime is 68543903. The reversal of 68543868 is 86834586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150088 + ... + 150543.

Almost surely, 2^68543868 is an apocalyptic number.

It is an amenable number.

68543868 is an abundant number, since it is smaller than the sum of its proper divisors (99810052).

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

68543868 is a wasteful number, since it uses less digits than its factorization.

68543868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300657 (or 300655 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 48.

The square root of 68543868 is about 8279.1224172614. The cubic root of 68543868 is about 409.2507991656.

The spelling of 68543868 in words is "sixty-eight million, five hundred forty-three thousand, eight hundred sixty-eight".