8449372865 has 96 divisors (see below), whose sum is σ = 11797954560. Its totient is φ = 5791564800.

The previous prime is 8449372853. The next prime is 8449372871. The reversal of 8449372865 is 5682739448.

It is not a de Polignac number, because 8449372865 - 2⁶ = 8449372801 is a prime.

Its product of digits (11612160) is a multiple of the sum of its prime divisors (252).

It is a self number, because there is not a number n which added to its sum of digits gives 8449372865.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 66530432 + ... + 66530558.

It is an arithmetic number, because the mean of its divisors is an integer number (122895360).

Almost surely, 2^8449372865 is an apocalyptic number.

It is an amenable number.

8449372865 is a deficient number, since it is larger than the sum of its proper divisors (3348581695).

8449372865 is a wasteful number, since it uses less digits than its factorization.

8449372865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 252 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 56.

The square root of 8449372865 is about 91920.4703262554. The cubic root of 8449372865 is about 2036.7676660513.

The spelling of 8449372865 in words is "eight billion, four hundred forty-nine million, three hundred seventy-two thousand, eight hundred sixty-five".