8605644648 has 32 divisors (see below), whose sum is σ = 21581998560. Its totient is φ = 2859496640.

The previous prime is 8605644637. The next prime is 8605644661. The reversal of 8605644648 is 8464465068.

8605644648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 8605644648.

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 7 ways as a sum of consecutive naturals, for example, 557958 + ... + 573173.

It is an arithmetic number, because the mean of its divisors is an integer number (674437455).

Almost surely, 2^8605644648 is an apocalyptic number.

It is an amenable number.

8605644648 is an abundant number, since it is smaller than the sum of its proper divisors (12976353912).

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

8605644648 is a wasteful number, since it uses less digits than its factorization.

8605644648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131457 (or 1131453 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 51.

The square root of 8605644648 is about 92766.6138651185. The cubic root of 8605644648 is about 2049.2477627112.

The spelling of 8605644648 in words is "eight billion, six hundred five million, six hundred forty-four thousand, six hundred forty-eight".