5685775866 has 24 divisors (see below), whose sum is σ = 12652133364. Its totient is φ = 1844035200.

The previous prime is 5685775861. The next prime is 5685775877. The reversal of 5685775866 is 6685775865.

It is a happy number.

5685775866 is a `hidden beast` number, since 5 + 6 + 8 + 577 + 58 + 6 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5644366641 + 41409225 = 75129^2 + 6435^2 .

It is not an unprimeable number, because it can be changed into a prime (5685775861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4267935 + ... + 4269266.

Almost surely, 2^5685775866 is an apocalyptic number.

5685775866 is an abundant number, since it is smaller than the sum of its proper divisors (6966357498).

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

5685775866 is a wasteful number, since it uses less digits than its factorization.

5685775866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8537246 (or 8537243 counting only the distinct ones).

The product of its digits is 84672000, while the sum is 63.

The square root of 5685775866 is about 75404.0838814450. The cubic root of 5685775866 is about 1784.8288553753.

Subtracting 5685775866 from its reverse (6685775865), we obtain a palindrome (999999999).

The spelling of 5685775866 in words is "five billion, six hundred eighty-five million, seven hundred seventy-five thousand, eight hundred sixty-six".