8644874860 has 24 divisors (see below), whose sum is σ = 18451850256. Its totient is φ = 3401261760.

The previous prime is 8644874827. The next prime is 8644874897. The reversal of 8644874860 is 684784468.

It is a super-2 number, since 2×8644874860² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3541762 + ... + 3544201.

It is an arithmetic number, because the mean of its divisors is an integer number (768827094).

Almost surely, 2^8644874860 is an apocalyptic number.

It is an amenable number.

8644874860 is an abundant number, since it is smaller than the sum of its proper divisors (9806975396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8644874860 is a wasteful number, since it uses less digits than its factorization.

8644874860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7086033 (or 7086031 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 55.

The square root of 8644874860 is about 92977.8191828567. The cubic root of 8644874860 is about 2052.3569844415.

The spelling of 8644874860 in words is "eight billion, six hundred forty-four million, eight hundred seventy-four thousand, eight hundred sixty".