8513865361 has 4 divisors (see below), whose sum is σ = 8596524352. Its totient is φ = 8431206372.

The previous prime is 8513865341. The next prime is 8513865379. The reversal of 8513865361 is 1635683158.

8513865361 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8513865361 - 2⁷ = 8513865233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8513865331) 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, 41329341 + ... + 41329546.

It is an arithmetic number, because the mean of its divisors is an integer number (2149131088).

Almost surely, 2^8513865361 is an apocalyptic number.

It is an amenable number.

8513865361 is a deficient number, since it is larger than the sum of its proper divisors (82658991).

8513865361 is a wasteful number, since it uses less digits than its factorization.

8513865361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82658990.

The product of its digits is 518400, while the sum is 46.

The square root of 8513865361 is about 92270.6094105810. The cubic root of 8513865361 is about 2041.9366269808.

The spelling of 8513865361 in words is "eight billion, five hundred thirteen million, eight hundred sixty-five thousand, three hundred sixty-one".