3686556863 has 16 divisors (see below), whose sum is σ = 4238134272. Its totient is φ = 3173940000.

The previous prime is 3686556857. The next prime is 3686556869.

3686556863 is nontrivially palindromic in base 10.

3686556863 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3686556857) and next prime (3686556869).

It is not a de Polignac number, because 3686556863 - 2⁶ = 3686556799 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3686556799 and 3686556808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686556869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46583 + ... + 97688.

It is an arithmetic number, because the mean of its divisors is an integer number (264883392).

Almost surely, 2^3686556863 is an apocalyptic number.

3686556863 is a deficient number, since it is larger than the sum of its proper divisors (551577409).

3686556863 is a wasteful number, since it uses less digits than its factorization.

3686556863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144406.

The product of its digits is 18662400, while the sum is 56.

The square root of 3686556863 is about 60717.0228436803. The cubic root of 3686556863 is about 1544.8049261637.

The spelling of 3686556863 in words is "three billion, six hundred eighty-six million, five hundred fifty-six thousand, eight hundred sixty-three".