8968556209 has 4 divisors (see below), whose sum is σ = 8968783140. Its totient is φ = 8968329280.

The previous prime is 8968556167. The next prime is 8968556239. The reversal of 8968556209 is 9026558698.

8968556209 is digitally balanced in base 3, 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 can be written as a sum of positive squares in 2 ways, for example, as 5817417984 + 3151138225 = 76272^2 + 56135^2 .

It is a cyclic number.

It is not a de Polignac number, because 8968556209 - 2¹⁹ = 8968031921 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8968556239) 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, 37012 + ... + 138949.

It is an arithmetic number, because the mean of its divisors is an integer number (2242195785).

Almost surely, 2^8968556209 is an apocalyptic number.

It is an amenable number.

8968556209 is a deficient number, since it is larger than the sum of its proper divisors (226931).

8968556209 is a wasteful number, since it uses less digits than its factorization.

8968556209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226930.

The product of its (nonzero) digits is 9331200, while the sum is 58.

The square root of 8968556209 is about 94702.4614727622. The cubic root of 8968556209 is about 2077.6585623224.

The spelling of 8968556209 in words is "eight billion, nine hundred sixty-eight million, five hundred fifty-six thousand, two hundred nine".