8616985617 has 8 divisors (see below), whose sum is σ = 11489745024. Its totient is φ = 5744441648.

The previous prime is 8616985613. The next prime is 8616985669. The reversal of 8616985617 is 7165896168.

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

It is a cyclic number.

It is not a de Polignac number, because 8616985617 - 2² = 8616985613 is a prime.

It is a super-2 number, since 2×8616985617² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8616985613) 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, 116008 + ... + 175190.

It is an arithmetic number, because the mean of its divisors is an integer number (1436218128).

Almost surely, 2^8616985617 is an apocalyptic number.

It is an amenable number.

8616985617 is a deficient number, since it is larger than the sum of its proper divisors (2872759407).

8616985617 is a wasteful number, since it uses less digits than its factorization.

8616985617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107719.

The product of its digits is 4354560, while the sum is 57.

The square root of 8616985617 is about 92827.7200894216. The cubic root of 8616985617 is about 2050.1475695475.

The spelling of 8616985617 in words is "eight billion, six hundred sixteen million, nine hundred eighty-five thousand, six hundred seventeen".