9019468864 has 112 divisors (see below), whose sum is σ = 21956133888. Its totient is φ = 3588046848.

The previous prime is 9019468859. The next prime is 9019468867. The reversal of 9019468864 is 4688649109.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (9019468867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547857 + ... + 564079.

Almost surely, 2^9019468864 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 9019468864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10978066944).

9019468864 is an abundant number, since it is smaller than the sum of its proper divisors (12936665024).

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

9019468864 is a wasteful number, since it uses less digits than its factorization.

9019468864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16332 (or 16322 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 9019468864 is about 94970.8842961884. The cubic root of 9019468864 is about 2081.5826268691.

The spelling of 9019468864 in words is "nine billion, nineteen million, four hundred sixty-eight thousand, eight hundred sixty-four".