9651948440 has 64 divisors (see below), whose sum is σ = 21860616960. Its totient is φ = 3835307520.

The previous prime is 9651948421. The next prime is 9651948463. The reversal of 9651948440 is 448491569.

9651948440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 5895302 + ... + 5896938.

It is an arithmetic number, because the mean of its divisors is an integer number (341572140).

Almost surely, 2^9651948440 is an apocalyptic number.

It is an amenable number.

9651948440 is an abundant number, since it is smaller than the sum of its proper divisors (12208668520).

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

9651948440 is a wasteful number, since it uses less digits than its factorization.

9651948440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532 (or 2528 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 9651948440 is about 98244.3303198714. The cubic root of 9651948440 is about 2129.1438174706.

The spelling of 9651948440 in words is "nine billion, six hundred fifty-one million, nine hundred forty-eight thousand, four hundred forty".