64573008388 has 24 divisors (see below), whose sum is σ = 131263168064. Its totient is φ = 27220471200.

The previous prime is 64573008377. The next prime is 64573008419. The reversal of 64573008388 is 88380037546.

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, 18901398 + ... + 18904813.

Almost surely, 2^64573008388 is an apocalyptic number.

It is an amenable number.

64573008388 is an abundant number, since it is smaller than the sum of its proper divisors (66690159676).

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

64573008388 is a wasteful number, since it uses less digits than its factorization.

64573008388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37806283 (or 37806281 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 64573008388 in words is "sixty-four billion, five hundred seventy-three million, eight thousand, three hundred eighty-eight".