18582445968 has 80 divisors (see below), whose sum is σ = 50841626880. Its totient is φ = 5832093312.

The previous prime is 18582445951. The next prime is 18582445993. The reversal of 18582445968 is 86954428581.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86155 + ... + 211157.

It is an arithmetic number, because the mean of its divisors is an integer number (635520336).

Almost surely, 2^18582445968 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 18582445968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25420813440).

18582445968 is an abundant number, since it is smaller than the sum of its proper divisors (32259180912).

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

18582445968 is a wasteful number, since it uses less digits than its factorization.

18582445968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125196 (or 125190 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 60.

The spelling of 18582445968 in words is "eighteen billion, five hundred eighty-two million, four hundred forty-five thousand, nine hundred sixty-eight".