9744472640 has 112 divisors (see below), whose sum is σ = 26548031232. Its totient is φ = 3337291776.

The previous prime is 9744472609. The next prime is 9744472667. The reversal of 9744472640 is 462744479.

It is a tau number, because it is divible by the number of its divisors (112).

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, 2737742 + ... + 2741298.

Almost surely, 2^9744472640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9744472640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13274015616).

9744472640 is an abundant number, since it is smaller than the sum of its proper divisors (16803558592).

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

9744472640 is a wasteful number, since it uses less digits than its factorization.

9744472640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4804 (or 4794 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 47.

The square root of 9744472640 is about 98714.0954474081. The cubic root of 9744472640 is about 2135.9255632951.

The spelling of 9744472640 in words is "nine billion, seven hundred forty-four million, four hundred seventy-two thousand, six hundred forty".