8744505669 has 12 divisors (see below), whose sum is σ = 12869273196. Its totient is φ = 5719676352.

The previous prime is 8744505647. The next prime is 8744505683. The reversal of 8744505669 is 9665054478.

8744505669 is a `hidden beast` number, since 8 + 74 + 4 + 5 + 0 + 566 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4749001569 + 3995504100 = 68913^2 + 63210^2 .

It is not a de Polignac number, because 8744505669 - 2¹³ = 8744497477 is a prime.

It is a super-2 number, since 2×8744505669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8744505619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9165672 + ... + 9166625.

It is an arithmetic number, because the mean of its divisors is an integer number (1072439433).

Almost surely, 2^8744505669 is an apocalyptic number.

It is an amenable number.

8744505669 is a deficient number, since it is larger than the sum of its proper divisors (4124767527).

8744505669 is a wasteful number, since it uses less digits than its factorization.

8744505669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18332356 (or 18332353 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The square root of 8744505669 is about 93512.0616230869. The cubic root of 8744505669 is about 2060.2112509187.

The spelling of 8744505669 in words is "eight billion, seven hundred forty-four million, five hundred five thousand, six hundred sixty-nine".