8643898914 has 64 divisors (see below), whose sum is σ = 21115385856. Its totient is φ = 2302665984.

The previous prime is 8643898909. The next prime is 8643898933. The reversal of 8643898914 is 4198983468.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19827 + ... + 132969.

It is an arithmetic number, because the mean of its divisors is an integer number (329927904).

Almost surely, 2^8643898914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8643898914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10557692928).

8643898914 is an abundant number, since it is smaller than the sum of its proper divisors (12471486942).

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

8643898914 is a wasteful number, since it uses less digits than its factorization.

8643898914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113279.

The product of its digits is 11943936, while the sum is 60.

The square root of 8643898914 is about 92972.5707614886. The cubic root of 8643898914 is about 2052.2797492780.

The spelling of 8643898914 in words is "eight billion, six hundred forty-three million, eight hundred ninety-eight thousand, nine hundred fourteen".