8572285009 has 4 divisors (see below), whose sum is σ = 8657159220. Its totient is φ = 8487410800.

The previous prime is 8572284979. The next prime is 8572285027. The reversal of 8572285009 is 9005822758.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9005822758 = 2 ⋅4502911379.

It can be written as a sum of positive squares in 2 ways, for example, as 7661150784 + 911134225 = 87528^2 + 30185^2 .

It is a cyclic number.

It is not a de Polignac number, because 8572285009 - 2²³ = 8563896401 is a prime.

It is a super-2 number, since 2×8572285009² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8572285009.

It is not an unprimeable number, because it can be changed into a prime (8572285049) 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 3 ways as a sum of consecutive naturals, for example, 42436954 + ... + 42437155.

It is an arithmetic number, because the mean of its divisors is an integer number (2164289805).

Almost surely, 2^8572285009 is an apocalyptic number.

It is an amenable number.

8572285009 is a deficient number, since it is larger than the sum of its proper divisors (84874211).

8572285009 is a wasteful number, since it uses less digits than its factorization.

8572285009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84874210.

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 8572285009 is about 92586.6351532444. The cubic root of 8572285009 is about 2046.5963753931.

The spelling of 8572285009 in words is "eight billion, five hundred seventy-two million, two hundred eighty-five thousand, nine".