3686773666 has 8 divisors (see below), whose sum is σ = 5531034780. Its totient is φ = 1843095408.

The previous prime is 3686773621. The next prime is 3686773667. The reversal of 3686773666 is 6663776863.

It can be written as a sum of positive squares in 2 ways, for example, as 3674905641 + 11868025 = 60621^2 + 3445^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3686773666² = 27184600128622159112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3686773666.

It is not an unprimeable number, because it can be changed into a prime (3686773667) 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, 129541 + ... + 155416.

Almost surely, 2^3686773666 is an apocalyptic number.

3686773666 is a deficient number, since it is larger than the sum of its proper divisors (1844261114).

3686773666 is a wasteful number, since it uses less digits than its factorization.

3686773666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291428.

The product of its digits is 27433728, while the sum is 58.

The square root of 3686773666 is about 60718.8081734153. The cubic root of 3686773666 is about 1544.8352084199.

The spelling of 3686773666 in words is "three billion, six hundred eighty-six million, seven hundred seventy-three thousand, six hundred sixty-six".