9936645884 has 96 divisors (see below), whose sum is σ = 20164902912. Its totient is φ = 4242168000.

The previous prime is 9936645881. The next prime is 9936645907. The reversal of 9936645884 is 4885466399.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9936645881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11202089 + ... + 11202975.

It is an arithmetic number, because the mean of its divisors is an integer number (210051072).

Almost surely, 2^9936645884 is an apocalyptic number.

It is an amenable number.

9936645884 is an abundant number, since it is smaller than the sum of its proper divisors (10228257028).

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

9936645884 is a wasteful number, since it uses less digits than its factorization.

9936645884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1165 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 62.

The square root of 9936645884 is about 99682.7261063821. The cubic root of 9936645884 is about 2149.8753043960.

The spelling of 9936645884 in words is "nine billion, nine hundred thirty-six million, six hundred forty-five thousand, eight hundred eighty-four".