4644725644 has 24 divisors (see below), whose sum is σ = 8773324560. Its totient is φ = 2138869824.

The previous prime is 4644725611. The next prime is 4644725707. The reversal of 4644725644 is 4465274464.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4644725594 and 4644725603.

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, 77779 + ... + 123850.

It is an arithmetic number, because the mean of its divisors is an integer number (365555190).

Almost surely, 2^4644725644 is an apocalyptic number.

It is an amenable number.

4644725644 is a deficient number, since it is larger than the sum of its proper divisors (4128598916).

4644725644 is a wasteful number, since it uses less digits than its factorization.

4644725644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202089 (or 202087 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 46.

The square root of 4644725644 is about 68152.2240576197. The cubic root of 4644725644 is about 1668.4762229836.

The spelling of 4644725644 in words is "four billion, six hundred forty-four million, seven hundred twenty-five thousand, six hundred forty-four".