64470772332 has 18 divisors (see below), whose sum is σ = 162967785708. Its totient is φ = 21490257432.

The previous prime is 64470772321. The next prime is 64470772339. The reversal of 64470772332 is 23327707446.

64470772332 is a `hidden beast` number, since 64 + 470 + 77 + 23 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (64470772339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 895427358 + ... + 895427429.

Almost surely, 2^64470772332 is an apocalyptic number.

It is an amenable number.

64470772332 is an abundant number, since it is smaller than the sum of its proper divisors (98497013376).

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

64470772332 is a wasteful number, since it uses less digits than its factorization.

64470772332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790854797 (or 1790854792 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 45.

The spelling of 64470772332 in words is "sixty-four billion, four hundred seventy million, seven hundred seventy-two thousand, three hundred thirty-two".