8489663999 has 16 divisors (see below), whose sum is σ = 9230592000. Its totient is φ = 7778475360.

The previous prime is 8489663993. The next prime is 8489664013. The reversal of 8489663999 is 9993669848.

It is a Cunningham number, because it is equal to 2040³-1.

It is a de Polignac number, because none of the positive numbers 2^k-8489663999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8489663993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197437 + ... + 1204505.

It is an arithmetic number, because the mean of its divisors is an integer number (576912000).

Almost surely, 2^8489663999 is an apocalyptic number.

8489663999 is a deficient number, since it is larger than the sum of its proper divisors (740928001).

8489663999 is a wasteful number, since it uses less digits than its factorization.

8489663999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9158.

The product of its digits is 181398528, while the sum is 71.

The square root of 8489663999 is about 92139.3726861650. The cubic root of 8489663999 is about 2039.9999999199. Note that the first 7 decimals are identical.

The spelling of 8489663999 in words is "eight billion, four hundred eighty-nine million, six hundred sixty-three thousand, nine hundred ninety-nine".