64608768 has 120 divisors (see below), whose sum is σ = 213209568. Its totient is φ = 18450432.

The previous prime is 64608751. The next prime is 64608787. The reversal of 64608768 is 86780646.

It is a happy number.

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, 31255 + ... + 33257.

Almost surely, 2^64608768 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 64608768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106604784).

64608768 is an abundant number, since it is smaller than the sum of its proper divisors (148600800).

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

64608768 is a wasteful number, since it uses less digits than its factorization.

64608768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034 (or 2015 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 64608768 is about 8037.9579496287. The cubic root of 64608768 is about 401.2642665321.

The spelling of 64608768 in words is "sixty-four million, six hundred eight thousand, seven hundred sixty-eight".