64475370432 has 84 divisors (see below), whose sum is σ = 201607664856. Its totient is φ = 19537989120.

The previous prime is 64475370403. The next prime is 64475370499. The reversal of 64475370432 is 23407357446.

64475370432 is a `hidden beast` number, since 64 + 47 + 53 + 70 + 432 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5081683 + ... + 5094354.

Almost surely, 2^64475370432 is an apocalyptic number.

It is an amenable number.

64475370432 is an abundant number, since it is smaller than the sum of its proper divisors (137132294424).

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

64475370432 is a wasteful number, since it uses less digits than its factorization.

64475370432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10176066 (or 10176053 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 45.

The spelling of 64475370432 in words is "sixty-four billion, four hundred seventy-five million, three hundred seventy thousand, four hundred thirty-two".