8509368945 has 128 divisors (see below), whose sum is σ = 17262305280. Its totient is φ = 3477012480.

The previous prime is 8509368929. The next prime is 8509368947. The reversal of 8509368945 is 5498639058.

It is not a de Polignac number, because 8509368945 - 2⁴ = 8509368929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8509368947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 32354884 + ... + 32355146.

It is an arithmetic number, because the mean of its divisors is an integer number (134861760).

Almost surely, 2^8509368945 is an apocalyptic number.

It is an amenable number.

8509368945 is an abundant number, since it is smaller than the sum of its proper divisors (8752936335).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8509368945 is a wasteful number, since it uses less digits than its factorization.

8509368945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655.

The product of its (nonzero) digits is 9331200, while the sum is 57.

The square root of 8509368945 is about 92246.2408177157. The cubic root of 8509368945 is about 2041.5770952865.

The spelling of 8509368945 in words is "eight billion, five hundred nine million, three hundred sixty-eight thousand, nine hundred forty-five".