9964236172 has 24 divisors (see below), whose sum is σ = 19027289232. Its totient is φ = 4528089600.

The previous prime is 9964236151. The next prime is 9964236173. The reversal of 9964236172 is 2716324699.

It is not an unprimeable number, because it can be changed into a prime (9964236173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169908 + ... + 220900.

It is an arithmetic number, because the mean of its divisors is an integer number (792803718).

Almost surely, 2^9964236172 is an apocalyptic number.

It is an amenable number.

9964236172 is a deficient number, since it is larger than the sum of its proper divisors (9063053060).

9964236172 is a wasteful number, since it uses less digits than its factorization.

9964236172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55449 (or 55447 counting only the distinct ones).

The product of its digits is 979776, while the sum is 49.

The square root of 9964236172 is about 99821.0206920366. The cubic root of 9964236172 is about 2151.8632610634.

The spelling of 9964236172 in words is "nine billion, nine hundred sixty-four million, two hundred thirty-six thousand, one hundred seventy-two".