8644523460 has 96 divisors (see below), whose sum is σ = 25656704640. Its totient is φ = 2167216128.

The previous prime is 8644523401. The next prime is 8644523467. The reversal of 8644523460 is 643254468.

It is not an unprimeable number, because it can be changed into a prime (8644523467) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1035222 + ... + 1043538.

It is an arithmetic number, because the mean of its divisors is an integer number (267257340).

Almost surely, 2^8644523460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8644523460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12828352320).

8644523460 is an abundant number, since it is smaller than the sum of its proper divisors (17012181180).

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

8644523460 is a wasteful number, since it uses less digits than its factorization.

8644523460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9365 (or 9363 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The square root of 8644523460 is about 92975.9294656418. The cubic root of 8644523460 is about 2052.3291757483.

The spelling of 8644523460 in words is "eight billion, six hundred forty-four million, five hundred twenty-three thousand, four hundred sixty".