8666323489 has 16 divisors (see below), whose sum is σ = 9117763200. Its totient is φ = 8226239616.

The previous prime is 8666323487. The next prime is 8666323511. The reversal of 8666323489 is 9843236668.

It is a cyclic number.

It is not a de Polignac number, because 8666323489 - 2¹ = 8666323487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8666323487) 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, 404757 + ... + 425629.

It is an arithmetic number, because the mean of its divisors is an integer number (569860200).

Almost surely, 2^8666323489 is an apocalyptic number.

It is an amenable number.

8666323489 is a deficient number, since it is larger than the sum of its proper divisors (451439711).

8666323489 is a wasteful number, since it uses less digits than its factorization.

8666323489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21144.

The product of its digits is 8957952, while the sum is 55.

The square root of 8666323489 is about 93093.0904471433. The cubic root of 8666323489 is about 2054.0529367996.

The spelling of 8666323489 in words is "eight billion, six hundred sixty-six million, three hundred twenty-three thousand, four hundred eighty-nine".