9646485640 has 64 divisors (see below), whose sum is σ = 23745960000. Its totient is φ = 3497706240.

The previous prime is 9646485571. The next prime is 9646485671. The reversal of 9646485640 is 465846469.

It is a happy number.

9646485640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122151 + ... + 184969.

It is an arithmetic number, because the mean of its divisors is an integer number (371030625).

Almost surely, 2^9646485640 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 9646485640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11872980000).

9646485640 is an abundant number, since it is smaller than the sum of its proper divisors (14099474360).

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

9646485640 is a wasteful number, since it uses less digits than its factorization.

9646485640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63190 (or 63186 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 52.

The square root of 9646485640 is about 98216.5242716316. The cubic root of 9646485640 is about 2128.7420581117.

The spelling of 9646485640 in words is "nine billion, six hundred forty-six million, four hundred eighty-five thousand, six hundred forty".