64813930048 has 56 divisors (see below), whose sum is σ = 148362570432. Its totient is φ = 27517776384.

The previous prime is 64813930019. The next prime is 64813930061. The reversal of 64813930048 is 84003931846.

It is a tau number, because it is divible by the number of its divisors (56).

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, 628111 + ... + 723982.

Almost surely, 2^64813930048 is an apocalyptic number.

It is an amenable number.

64813930048 is an abundant number, since it is smaller than the sum of its proper divisors (83548640384).

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

64813930048 is a wasteful number, since it uses less digits than its factorization.

64813930048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352219 (or 1352209 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 64813930048 in words is "sixty-four billion, eight hundred thirteen million, nine hundred thirty thousand, forty-eight".