8686441617 has 8 divisors (see below), whose sum is σ = 13236482496. Its totient is φ = 4963680912.

The previous prime is 8686441613. The next prime is 8686441633. The reversal of 8686441617 is 7161446868.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8686441617 - 2² = 8686441613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8686441617.

It is not an unprimeable number, because it can be changed into a prime (8686441613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206820018 + ... + 206820059.

It is an arithmetic number, because the mean of its divisors is an integer number (1654560312).

Almost surely, 2^8686441617 is an apocalyptic number.

It is an amenable number.

8686441617 is a deficient number, since it is larger than the sum of its proper divisors (4550040879).

8686441617 is a wasteful number, since it uses less digits than its factorization.

8686441617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413640087.

The product of its digits is 1548288, while the sum is 51.

The square root of 8686441617 is about 93201.0816299897. The cubic root of 8686441617 is about 2055.6411444808.

The spelling of 8686441617 in words is "eight billion, six hundred eighty-six million, four hundred forty-one thousand, six hundred seventeen".