9000009081864 has 48 divisors (see below), whose sum is σ = 24550384513200. Its totient is φ = 2978420268384.

The previous prime is 9000009081859. The next prime is 9000009081961. The reversal of 9000009081864 is 4681809000009.

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 11 ways as a sum of consecutive naturals, for example, 449630734 + ... + 449650749.

It is an arithmetic number, because the mean of its divisors is an integer number (511466344025).

Almost surely, 2^{9000009081864} is an apocalyptic number.

It is an amenable number.

9000009081864 is an abundant number, since it is smaller than the sum of its proper divisors (15550375431336).

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

9000009081864 is a wasteful number, since it uses less digits than its factorization.

9000009081864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899281634 (or 899281627 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 9000009081864 in words is "nine trillion, nine million, eighty-one thousand, eight hundred sixty-four".