8782991999 has 4 divisors (see below), whose sum is σ = 8783408640. Its totient is φ = 8782575360.

The previous prime is 8782991977. The next prime is 8782992059. The reversal of 8782991999 is 9991992878.

8782991999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8782991999 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 (8782991969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174914 + ... + 219455.

It is an arithmetic number, because the mean of its divisors is an integer number (2195852160).

Almost surely, 2^8782991999 is an apocalyptic number.

8782991999 is a deficient number, since it is larger than the sum of its proper divisors (416641).

8782991999 is a wasteful number, since it uses less digits than its factorization.

8782991999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416640.

The product of its digits is 52907904, while the sum is 71.

The square root of 8782991999 is about 93717.6184023047. The cubic root of 8782991999 is about 2063.2292957328.

The spelling of 8782991999 in words is "eight billion, seven hundred eighty-two million, nine hundred ninety-one thousand, nine hundred ninety-nine".