64831033568 has 24 divisors (see below), whose sum is σ = 145869826032. Its totient is φ = 27784728576.

The previous prime is 64831033537. The next prime is 64831033573. The reversal of 64831033568 is 86533013846.

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, 144711905 + ... + 144712352.

It is an arithmetic number, because the mean of its divisors is an integer number (6077909418).

Almost surely, 2^64831033568 is an apocalyptic number.

It is an amenable number.

64831033568 is an abundant number, since it is smaller than the sum of its proper divisors (81038792464).

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

64831033568 is a wasteful number, since it uses less digits than its factorization.

64831033568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289424274 (or 289424266 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 64831033568 in words is "sixty-four billion, eight hundred thirty-one million, thirty-three thousand, five hundred sixty-eight".