3686658857 has 16 divisors (see below), whose sum is σ = 4246471680. Its totient is φ = 3135201552.

The previous prime is 3686658817. The next prime is 3686658917. The reversal of 3686658857 is 7588566863.

3686658857 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3686658857 - 2¹⁴ = 3686642473 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 3686658857.

It is not an unprimeable number, because it can be changed into a prime (3686658817) 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, 749468 + ... + 754370.

It is an arithmetic number, because the mean of its divisors is an integer number (265404480).

Almost surely, 2^3686658857 is an apocalyptic number.

It is an amenable number.

3686658857 is a deficient number, since it is larger than the sum of its proper divisors (559812823).

3686658857 is a wasteful number, since it uses less digits than its factorization.

3686658857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5732.

The product of its digits is 58060800, while the sum is 62.

The square root of 3686658857 is about 60717.8627505942. The cubic root of 3686658857 is about 1544.8191724633.

The spelling of 3686658857 in words is "three billion, six hundred eighty-six million, six hundred fifty-eight thousand, eight hundred fifty-seven".