3686868667 has 4 divisors (see below), whose sum is σ = 3686991880. Its totient is φ = 3686745456.

The previous prime is 3686868643. The next prime is 3686868673. The reversal of 3686868667 is 7668686863.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3686868667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3686868599 and 3686868608.

It is not an unprimeable number, because it can be changed into a prime (3686863667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15184 + ... + 87202.

It is an arithmetic number, because the mean of its divisors is an integer number (921747970).

Almost surely, 2^3686868667 is an apocalyptic number.

3686868667 is a deficient number, since it is larger than the sum of its proper divisors (123213).

3686868667 is an equidigital number, since it uses as much as digits as its factorization.

3686868667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123212.

The product of its digits is 83607552, while the sum is 64.

The square root of 3686868667 is about 60719.5904712804. The cubic root of 3686868667 is about 1544.8484774406.

The spelling of 3686868667 in words is "three billion, six hundred eighty-six million, eight hundred sixty-eight thousand, six hundred sixty-seven".