64628565376 has 32 divisors (see below), whose sum is σ = 128768527080. Its totient is φ = 32310190080.

The previous prime is 64628565347. The next prime is 64628565383. The reversal of 64628565376 is 67356582646.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 64628565376.

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, 1153696 + ... + 1208416.

Almost surely, 2^64628565376 is an apocalyptic number.

It is an amenable number.

64628565376 is a deficient number, since it is larger than the sum of its proper divisors (64139961704).

64628565376 is an equidigital number, since it uses as much as digits as its factorization.

64628565376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63962 (or 63950 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 58.

The spelling of 64628565376 in words is "sixty-four billion, six hundred twenty-eight million, five hundred sixty-five thousand, three hundred seventy-six".