9944664236 has 48 divisors (see below), whose sum is σ = 18846439584. Its totient is φ = 4564325376.

The previous prime is 9944664227. The next prime is 9944664259. The reversal of 9944664236 is 6324664499.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9974090 + ... + 9975086.

It is an arithmetic number, because the mean of its divisors is an integer number (392634158).

Almost surely, 2^9944664236 is an apocalyptic number.

It is an amenable number.

9944664236 is a deficient number, since it is larger than the sum of its proper divisors (8901775348).

9944664236 is a wasteful number, since it uses less digits than its factorization.

9944664236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890 (or 1888 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 53.

The square root of 9944664236 is about 99722.9373614717. The cubic root of 9944664236 is about 2150.4534277849.

The spelling of 9944664236 in words is "nine billion, nine hundred forty-four million, six hundred sixty-four thousand, two hundred thirty-six".