64694922632 has 36 divisors (see below), whose sum is σ = 128050421445. Its totient is φ = 30638488608.

The previous prime is 64694922631. The next prime is 64694922701. The reversal of 64694922632 is 23622949646.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 57076076836 + 7618845796 = 238906^2 + 87286^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=179854.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64694922631) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13666538 + ... + 13671270.

Almost surely, 2^64694922632 is an apocalyptic number.

It is an amenable number.

64694922632 is a deficient number, since it is larger than the sum of its proper divisors (63355498813).

64694922632 is an frugal number, since it uses more digits than its factorization.

64694922632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9510 (or 4754 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 53.

The spelling of 64694922632 in words is "sixty-four billion, six hundred ninety-four million, nine hundred twenty-two thousand, six hundred thirty-two".