3686865523 has 24 divisors (see below), whose sum is σ = 4236422400. Its totient is φ = 3200120880.

The previous prime is 3686865517. The next prime is 3686865593. The reversal of 3686865523 is 3255686863.

It is not a de Polignac number, because 3686865523 - 2⁵ = 3686865491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3686865593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2334148 + ... + 2335726.

It is an arithmetic number, because the mean of its divisors is an integer number (176517600).

Almost surely, 2^3686865523 is an apocalyptic number.

3686865523 is a deficient number, since it is larger than the sum of its proper divisors (549556877).

3686865523 is a wasteful number, since it uses less digits than its factorization.

3686865523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463 (or 2452 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 52.

The square root of 3686865523 is about 60719.5645817722. The cubic root of 3686865523 is about 1544.8480383141.

The spelling of 3686865523 in words is "three billion, six hundred eighty-six million, eight hundred sixty-five thousand, five hundred twenty-three".