8585749999 has 4 divisors (see below), whose sum is σ = 8747745336. Its totient is φ = 8423754664.

The previous prime is 8585749969. The next prime is 8585750003. The reversal of 8585749999 is 9999475858.

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 8585749999 - 2¹⁷ = 8585618927 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 (8585749919) 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, 80997589 + ... + 80997694.

It is an arithmetic number, because the mean of its divisors is an integer number (2186936334).

Almost surely, 2^8585749999 is an apocalyptic number.

8585749999 is a deficient number, since it is larger than the sum of its proper divisors (161995337).

8585749999 is a wasteful number, since it uses less digits than its factorization.

8585749999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161995336.

The product of its digits is 293932800, while the sum is 73.

The square root of 8585749999 is about 92659.3222455248. The cubic root of 8585749999 is about 2047.6673844104.

The spelling of 8585749999 in words is "eight billion, five hundred eighty-five million, seven hundred forty-nine thousand, nine hundred ninety-nine".