9969943944 has 32 divisors (see below), whose sum is σ = 25333467840. Its totient is φ = 3268833600.

The previous prime is 9969943939. The next prime is 9969943961. The reversal of 9969943944 is 4493499699.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3403572 + ... + 3406499.

It is an arithmetic number, because the mean of its divisors is an integer number (791670870).

Almost surely, 2^9969943944 is an apocalyptic number.

It is an amenable number.

9969943944 is an abundant number, since it is smaller than the sum of its proper divisors (15363523896).

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

9969943944 is a wasteful number, since it uses less digits than its factorization.

9969943944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6810141 (or 6810137 counting only the distinct ones).

The product of its digits is 68024448, while the sum is 66.

The square root of 9969943944 is about 99849.6066291701. The cubic root of 9969943944 is about 2152.2740635972.

The spelling of 9969943944 in words is "nine billion, nine hundred sixty-nine million, nine hundred forty-three thousand, nine hundred forty-four".