9986644822 has 48 divisors (see below), whose sum is σ = 19452007872. Its totient is φ = 3800396880.

The previous prime is 9986644793. The next prime is 9986644859. The reversal of 9986644822 is 2284466899.

9986644822 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61368 + ... + 154075.

It is an arithmetic number, because the mean of its divisors is an integer number (405250164).

Almost surely, 2^9986644822 is an apocalyptic number.

9986644822 is a deficient number, since it is larger than the sum of its proper divisors (9465363050).

9986644822 is a wasteful number, since it uses less digits than its factorization.

9986644822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215513 (or 215506 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 58.

The square root of 9986644822 is about 99933.2018000024. The cubic root of 9986644822 is about 2153.4751674594.

The spelling of 9986644822 in words is "nine billion, nine hundred eighty-six million, six hundred forty-four thousand, eight hundred twenty-two".