18582809896 has 16 divisors (see below), whose sum is σ = 39820307040. Its totient is φ = 7964061360.

The previous prime is 18582809891. The next prime is 18582810011. The reversal of 18582809896 is 69890828581.

It is not an unprimeable number, because it can be changed into a prime (18582809891) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 165917890 + ... + 165918001.

It is an arithmetic number, because the mean of its divisors is an integer number (2488769190).

Almost surely, 2^18582809896 is an apocalyptic number.

It is an amenable number.

18582809896 is an abundant number, since it is smaller than the sum of its proper divisors (21237497144).

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

18582809896 is a wasteful number, since it uses less digits than its factorization.

18582809896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331835904 (or 331835900 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 64.

The spelling of 18582809896 in words is "eighteen billion, five hundred eighty-two million, eight hundred nine thousand, eight hundred ninety-six".