8535666813 has 16 divisors (see below), whose sum is σ = 11426505216. Its totient is φ = 5667667200.

The previous prime is 8535666791. The next prime is 8535666817. The reversal of 8535666813 is 3186665358.

8535666813 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8535666813 - 2¹⁴ = 8535650429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8535666817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1468513 + ... + 1474313.

It is an arithmetic number, because the mean of its divisors is an integer number (714156576).

Almost surely, 2^8535666813 is an apocalyptic number.

It is an amenable number.

8535666813 is a deficient number, since it is larger than the sum of its proper divisors (2890838403).

8535666813 is a wasteful number, since it uses less digits than its factorization.

8535666813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7684.

The product of its digits is 3110400, while the sum is 51.

The square root of 8535666813 is about 92388.6725361935. The cubic root of 8535666813 is about 2043.6780701859.

The spelling of 8535666813 in words is "eight billion, five hundred thirty-five million, six hundred sixty-six thousand, eight hundred thirteen".