64692685332 has 72 divisors (see below), whose sum is σ = 179869452672. Its totient is φ = 19603829520.

The previous prime is 64692685313. The next prime is 64692685333. The reversal of 64692685332 is 23358629646.

It is a happy number.

64692685332 is a `hidden beast` number, since 6 + 46 + 9 + 2 + 68 + 533 + 2 = 666.

64692685332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64692685333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 627148 + ... + 722979.

Almost surely, 2^64692685332 is an apocalyptic number.

It is an amenable number.

64692685332 is an abundant number, since it is smaller than the sum of its proper divisors (115176767340).

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

64692685332 is a wasteful number, since it uses less digits than its factorization.

64692685332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350170 (or 1350143 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 54.

The spelling of 64692685332 in words is "sixty-four billion, six hundred ninety-two million, six hundred eighty-five thousand, three hundred thirty-two".