64428635184 has 40 divisors (see below), whose sum is σ = 173677193472. Its totient is φ = 20542463040.

The previous prime is 64428635177. The next prime is 64428635203. The reversal of 64428635184 is 48153682446.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29178532 + ... + 29180739.

Almost surely, 2^64428635184 is an apocalyptic number.

It is an amenable number.

64428635184 is an abundant number, since it is smaller than the sum of its proper divisors (109248558288).

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

64428635184 is a wasteful number, since it uses less digits than its factorization.

64428635184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58359305 (or 58359299 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 51.

The spelling of 64428635184 in words is "sixty-four billion, four hundred twenty-eight million, six hundred thirty-five thousand, one hundred eighty-four".