9564643424 has 96 divisors (see below), whose sum is σ = 22351101696. Its totient is φ = 3943779840.

The previous prime is 9564643421. The next prime is 9564643433. The reversal of 9564643424 is 4243464659.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9564643421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637934 + ... + 652754.

It is an arithmetic number, because the mean of its divisors is an integer number (232823976).

Almost surely, 2^9564643424 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 9564643424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11175550848).

9564643424 is an abundant number, since it is smaller than the sum of its proper divisors (12786458272).

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

9564643424 is a wasteful number, since it uses less digits than its factorization.

9564643424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14948 (or 14940 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 47.

The square root of 9564643424 is about 97798.9950050613. The cubic root of 9564643424 is about 2122.7047641545.

The spelling of 9564643424 in words is "nine billion, five hundred sixty-four million, six hundred forty-three thousand, four hundred twenty-four".