8644874859 has 6 divisors (see below), whose sum is σ = 12487041476. Its totient is φ = 5763249900.

The previous prime is 8644874827. The next prime is 8644874897. The reversal of 8644874859 is 9584784468.

8644874859 is a `hidden beast` number, since 8 + 64 + 487 + 48 + 59 = 666.

8644874859 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8644874859 - 2⁵ = 8644874827 is a prime.

It is a super-2 number, since 2×8644874859² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8644874796 and 8644874805.

It is not an unprimeable number, because it can be changed into a prime (8644864859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 480270817 + ... + 480270834.

Almost surely, 2^8644874859 is an apocalyptic number.

8644874859 is a deficient number, since it is larger than the sum of its proper divisors (3842166617).

8644874859 is a wasteful number, since it uses less digits than its factorization.

8644874859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960541657 (or 960541654 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 63.

The square root of 8644874859 is about 92977.8191774791. The cubic root of 8644874859 is about 2052.3569843623.

The spelling of 8644874859 in words is "eight billion, six hundred forty-four million, eight hundred seventy-four thousand, eight hundred fifty-nine".