6402045625 has 10 divisors (see below), whose sum is σ = 7999996994. Its totient is φ = 5121636000.

The previous prime is 6402045619. The next prime is 6402045667. The reversal of 6402045625 is 5265402046.

It can be written as a sum of positive squares in 5 ways, for example, as 1614512761 + 4787532864 = 40181^2 + 69192^2 .

It is not a de Polignac number, because 6402045625 - 2¹¹ = 6402043577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5121012 + ... + 5122261.

Almost surely, 2^6402045625 is an apocalyptic number.

It is an amenable number.

6402045625 is a deficient number, since it is larger than the sum of its proper divisors (1597951369).

6402045625 is an equidigital number, since it uses as much as digits as its factorization.

6402045625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10243293 (or 10243278 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 6402045625 is about 80012.7841347869. The cubic root of 6402045625 is about 1856.8333238351.

The spelling of 6402045625 in words is "six billion, four hundred two million, forty-five thousand, six hundred twenty-five".