4644660672 has 42 divisors (see below), whose sum is σ = 13313082848. Its totient is φ = 1548220032.

The previous prime is 4644660659. The next prime is 4644660673. The reversal of 4644660672 is 2760664464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644660673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4031248 + ... + 4032399.

Almost surely, 2^4644660672 is an apocalyptic number.

It is an amenable number.

4644660672 is an abundant number, since it is smaller than the sum of its proper divisors (8668422176).

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

4644660672 is a wasteful number, since it uses less digits than its factorization.

4644660672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8063665 (or 8063652 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The square root of 4644660672 is about 68151.7473877229. The cubic root of 4644660672 is about 1668.4684432100.

The spelling of 4644660672 in words is "four billion, six hundred forty-four million, six hundred sixty thousand, six hundred seventy-two".