64085328768 has 64 divisors (see below), whose sum is σ = 172558602000. Its totient is φ = 21069139968.

The previous prime is 64085328763. The next prime is 64085328823. The reversal of 64085328768 is 86782358046.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64085328761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1115043 + ... + 1171106.

Almost surely, 2^64085328768 is an apocalyptic number.

It is an amenable number.

64085328768 is an abundant number, since it is smaller than the sum of its proper divisors (108473273232).

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

64085328768 is a wasteful number, since it uses less digits than its factorization.

64085328768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286239 (or 2286227 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 64085328768 in words is "sixty-four billion, eighty-five million, three hundred twenty-eight thousand, seven hundred sixty-eight".