8681097859 has 4 divisors (see below), whose sum is σ = 9921254704. Its totient is φ = 7440941016.

The previous prime is 8681097839. The next prime is 8681097863. The reversal of 8681097859 is 9587901868.

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

It is a cyclic number.

It is not a de Polignac number, because 8681097859 - 2¹¹ = 8681095811 is a prime.

It is a super-2 number, since 2×8681097859² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8681097797 and 8681097806.

It is not an unprimeable number, because it can be changed into a prime (8681097839) 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, 620078412 + ... + 620078425.

It is an arithmetic number, because the mean of its divisors is an integer number (2480313676).

Almost surely, 2^8681097859 is an apocalyptic number.

8681097859 is a deficient number, since it is larger than the sum of its proper divisors (1240156845).

8681097859 is a wasteful number, since it uses less digits than its factorization.

8681097859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240156844.

The product of its (nonzero) digits is 8709120, while the sum is 61.

The square root of 8681097859 is about 93172.4093227174. The cubic root of 8681097859 is about 2055.2195256472.

The spelling of 8681097859 in words is "eight billion, six hundred eighty-one million, ninety-seven thousand, eight hundred fifty-nine".