3686818789 has 4 divisors (see below), whose sum is σ = 3692662240. Its totient is φ = 3680975340.

The previous prime is 3686818783. The next prime is 3686818799. The reversal of 3686818789 is 9878186863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3686818789 - 2⁷ = 3686818661 is a prime.

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 3686818789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686818783) 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 3 ways as a sum of consecutive naturals, for example, 2920779 + ... + 2922040.

It is an arithmetic number, because the mean of its divisors is an integer number (923165560).

Almost surely, 2^3686818789 is an apocalyptic number.

It is an amenable number.

3686818789 is a deficient number, since it is larger than the sum of its proper divisors (5843451).

3686818789 is an equidigital number, since it uses as much as digits as its factorization.

3686818789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5843450.

The product of its digits is 27869184, while the sum is 64.

The square root of 3686818789 is about 60719.1797457772. The cubic root of 3686818789 is about 1544.8415108875.

The spelling of 3686818789 in words is "three billion, six hundred eighty-six million, eight hundred eighteen thousand, seven hundred eighty-nine".