8713565648 has 20 divisors (see below), whose sum is σ = 17072227620. Its totient is φ = 4307829504.

The previous prime is 8713565633. The next prime is 8713565657. The reversal of 8713565648 is 8465653178.

8713565648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5025675664 + 3687889984 = 70892^2 + 60728^2 .

It is a super-3 number, since 3×8713565648³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8713565648.

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 3 ways as a sum of consecutive naturals, for example, 3058115 + ... + 3060962.

It is an arithmetic number, because the mean of its divisors is an integer number (853611381).

Almost surely, 2^8713565648 is an apocalyptic number.

It is an amenable number.

8713565648 is a deficient number, since it is larger than the sum of its proper divisors (8358661972).

8713565648 is a wasteful number, since it uses less digits than its factorization.

8713565648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119174 (or 6119168 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 53.

The square root of 8713565648 is about 93346.4817119531. The cubic root of 8713565648 is about 2057.7785497883.

The spelling of 8713565648 in words is "eight billion, seven hundred thirteen million, five hundred sixty-five thousand, six hundred forty-eight".