8559934813 has 4 divisors (see below), whose sum is σ = 8677194268. Its totient is φ = 8442675360.

The previous prime is 8559934787. The next prime is 8559934897. The reversal of 8559934813 is 3184399558.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1740808729 + 6819126084 = 41723^2 + 82578^2 .

It is a cyclic number.

It is not a de Polignac number, because 8559934813 - 2⁵ = 8559934781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8559934213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58629618 + ... + 58629763.

It is an arithmetic number, because the mean of its divisors is an integer number (2169298567).

Almost surely, 2^8559934813 is an apocalyptic number.

It is an amenable number.

8559934813 is a deficient number, since it is larger than the sum of its proper divisors (117259455).

8559934813 is a wasteful number, since it uses less digits than its factorization.

8559934813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117259454.

The product of its digits is 4665600, while the sum is 55.

The square root of 8559934813 is about 92519.9157641208. The cubic root of 8559934813 is about 2045.6130508581.

The spelling of 8559934813 in words is "eight billion, five hundred fifty-nine million, nine hundred thirty-four thousand, eight hundred thirteen".