8680844653 has 6 divisors (see below), whose sum is σ = 9348963722. Its totient is φ = 8012777280.

The previous prime is 8680844647. The next prime is 8680844677. The reversal of 8680844653 is 3564480868.

8680844653 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 3 ways, for example, as 17330569 + 8663514084 = 4163^2 + 93078^2 .

It is not a de Polignac number, because 8680844653 - 2⁹ = 8680844141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8680844653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8680844603) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 323013 + ... + 348853.

Almost surely, 2^8680844653 is an apocalyptic number.

It is an amenable number.

8680844653 is a deficient number, since it is larger than the sum of its proper divisors (668119069).

8680844653 is an frugal number, since it uses more digits than its factorization.

8680844653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51695 (or 25854 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 52.

The square root of 8680844653 is about 93171.0505092649. The cubic root of 8680844653 is about 2055.1995435749.

Multiplying 8680844653 by its sum of digits (52), we get a square (451403921956 = 671866²).

The spelling of 8680844653 in words is "eight billion, six hundred eighty million, eight hundred forty-four thousand, six hundred fifty-three".