8630144865 has 16 divisors (see below), whose sum is σ = 15342480000. Its totient is φ = 4602743856.

The previous prime is 8630144851. The next prime is 8630144921. The reversal of 8630144865 is 5684410368.

8630144865 is a `hidden beast` number, since 8 + 630 + 1 + 4 + 4 + 8 + 6 + 5 = 666.

It is not a de Polignac number, because 8630144865 - 2⁷ = 8630144737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8630144865.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31963365 + ... + 31963634.

It is an arithmetic number, because the mean of its divisors is an integer number (958905000).

Almost surely, 2^8630144865 is an apocalyptic number.

It is an amenable number.

8630144865 is a deficient number, since it is larger than the sum of its proper divisors (6712335135).

8630144865 is a wasteful number, since it uses less digits than its factorization.

8630144865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63927013 (or 63927007 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 8630144865 is about 92898.5729976516. The cubic root of 8630144865 is about 2051.1906519732.

The spelling of 8630144865 in words is "eight billion, six hundred thirty million, one hundred forty-four thousand, eight hundred sixty-five".