3689312565 has 8 divisors (see below), whose sum is σ = 5902900128. Its totient is φ = 1967633360.

The previous prime is 3689312527. The next prime is 3689312569. The reversal of 3689312565 is 5652139863.

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

It is not a de Polignac number, because 3689312565 - 2¹⁴ = 3689296181 is a prime.

It is a super-2 number, since 2×3689312565² = 27222054404533758450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3689312569) 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 7 ways as a sum of consecutive naturals, for example, 122977071 + ... + 122977100.

It is an arithmetic number, because the mean of its divisors is an integer number (737862516).

Almost surely, 2^3689312565 is an apocalyptic number.

It is an amenable number.

3689312565 is a deficient number, since it is larger than the sum of its proper divisors (2213587563).

3689312565 is a wasteful number, since it uses less digits than its factorization.

3689312565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245954179.

The product of its digits is 1166400, while the sum is 48.

The square root of 3689312565 is about 60739.7115979324. The cubic root of 3689312565 is about 1545.1897442939.

The spelling of 3689312565 in words is "three billion, six hundred eighty-nine million, three hundred twelve thousand, five hundred sixty-five".