64570768 has 20 divisors (see below), whose sum is σ = 129142528. Its totient is φ = 31243680.

The previous prime is 64570747. The next prime is 64570783. The reversal of 64570768 is 86707546.

64570768 is an admirable number.

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, 64596 + ... + 65587.

Almost surely, 2^64570768 is an apocalyptic number.

It is an amenable number.

64570768 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64570768 is a wasteful number, since it uses less digits than its factorization.

64570768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130222 (or 130216 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 64570768 is about 8035.5938175097. The cubic root of 64570768 is about 401.1855825135.

The spelling of 64570768 in words is "sixty-four million, five hundred seventy thousand, seven hundred sixty-eight".