8259870817 has 32 divisors (see below), whose sum is σ = 9726520320. Its totient is φ = 6933366720.

The previous prime is 8259870803. The next prime is 8259870821. The reversal of 8259870817 is 7180789528.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8259870817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8259870847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6676723 + ... + 6677959.

It is an arithmetic number, because the mean of its divisors is an integer number (303953760).

Almost surely, 2^8259870817 is an apocalyptic number.

It is an amenable number.

8259870817 is a deficient number, since it is larger than the sum of its proper divisors (1466649503).

8259870817 is a wasteful number, since it uses less digits than its factorization.

8259870817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053.

The product of its (nonzero) digits is 2257920, while the sum is 55.

The square root of 8259870817 is about 90883.8314388208. The cubic root of 8259870817 is about 2021.4255545972.

The spelling of 8259870817 in words is "eight billion, two hundred fifty-nine million, eight hundred seventy thousand, eight hundred seventeen".