68057856 has 108 divisors (see below), whose sum is σ = 198758560. Its totient is φ = 22394880.

The previous prime is 68057779. The next prime is 68057861. The reversal of 68057856 is 65875086.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251001 + ... + 251271.

Almost surely, 2^68057856 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 68057856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99379280).

68057856 is an abundant number, since it is smaller than the sum of its proper divisors (130700704).

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

68057856 is a wasteful number, since it uses less digits than its factorization.

68057856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 68057856 is about 8249.7185406534. The cubic root of 68057856 is about 408.2812363171.

The spelling of 68057856 in words is "sixty-eight million, fifty-seven thousand, eight hundred fifty-six".