8445219825 has 36 divisors (see below), whose sum is σ = 16242405360. Its totient is φ = 3860670240.

The previous prime is 8445219817. The next prime is 8445219859. The reversal of 8445219825 is 5289125448.

It is not a de Polignac number, because 8445219825 - 2³ = 8445219817 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1145335 + ... + 1152684.

Almost surely, 2^8445219825 is an apocalyptic number.

It is an amenable number.

8445219825 is a deficient number, since it is larger than the sum of its proper divisors (7797185535).

8445219825 is a wasteful number, since it uses less digits than its factorization.

8445219825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298046 (or 2298034 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The square root of 8445219825 is about 91897.8771517601. The cubic root of 8445219825 is about 2036.4339070063.

The spelling of 8445219825 in words is "eight billion, four hundred forty-five million, two hundred nineteen thousand, eight hundred twenty-five".