64700044608 has 28 divisors (see below), whose sum is σ = 171185535200. Its totient is φ = 21566681472.

The previous prime is 64700044573. The next prime is 64700044679. The reversal of 64700044608 is 80644000746.

It is a congruent 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, 168489508 + ... + 168489891.

Almost surely, 2^64700044608 is an apocalyptic number.

It is an amenable number.

64700044608 is an abundant number, since it is smaller than the sum of its proper divisors (106485490592).

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

64700044608 is a wasteful number, since it uses less digits than its factorization.

64700044608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336979414 (or 336979404 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The spelling of 64700044608 in words is "sixty-four billion, seven hundred million, forty-four thousand, six hundred eight".