5645889569 has 8 divisors (see below), whose sum is σ = 5727030792. Its totient is φ = 5564851200.

The previous prime is 5645889503. The next prime is 5645889583. The reversal of 5645889569 is 9659885465.

It can be written as a sum of positive squares in 4 ways, for example, as 93702400 + 5552187169 = 9680^2 + 74513^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5645889569 - 2²⁸ = 5377454113 is a prime.

It is a super-2 number, since 2×5645889569² = 63752138050686011522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5645889169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88469 + ... + 138269.

It is an arithmetic number, because the mean of its divisors is an integer number (715878849).

Almost surely, 2^5645889569 is an apocalyptic number.

It is an amenable number.

5645889569 is a deficient number, since it is larger than the sum of its proper divisors (81141223).

5645889569 is a wasteful number, since it uses less digits than its factorization.

5645889569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51427.

The product of its digits is 93312000, while the sum is 65.

The square root of 5645889569 is about 75139.1347368334. The cubic root of 5645889569 is about 1780.6454723628.

The spelling of 5645889569 in words is "five billion, six hundred forty-five million, eight hundred eighty-nine thousand, five hundred sixty-nine".