6444304625 has 32 divisors (see below), whose sum is σ = 8783873280. Its totient is φ = 4681296000.

The previous prime is 6444304543. The next prime is 6444304627. The reversal of 6444304625 is 5264034446.

It is not a de Polignac number, because 6444304625 - 2⁸ = 6444304369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6444304627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1459421 + ... + 1463829.

It is an arithmetic number, because the mean of its divisors is an integer number (274496040).

Almost surely, 2^6444304625 is an apocalyptic number.

It is an amenable number.

6444304625 is a deficient number, since it is larger than the sum of its proper divisors (2339568655).

6444304625 is a wasteful number, since it uses less digits than its factorization.

6444304625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5498 (or 5488 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 38.

The square root of 6444304625 is about 80276.4263342608. The cubic root of 6444304625 is about 1860.9099321827.

The spelling of 6444304625 in words is "six billion, four hundred forty-four million, three hundred four thousand, six hundred twenty-five".