3686878680 has 64 divisors (see below), whose sum is σ = 11225744640. Its totient is φ = 968491392.

The previous prime is 3686878631. The next prime is 3686878687. The reversal of 3686878680 is 868786863.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686878687) 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 15 ways as a sum of consecutive naturals, for example, 221244 + ... + 237323.

It is an arithmetic number, because the mean of its divisors is an integer number (175402260).

Almost surely, 2^3686878680 is an apocalyptic number.

3686878680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3686878680 is an abundant number, since it is smaller than the sum of its proper divisors (7538865960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3686878680 is a wasteful number, since it uses less digits than its factorization.

3686878680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458648 (or 458644 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 60.

The square root of 3686878680 is about 60719.6729240203. The cubic root of 3686878680 is about 1544.8498759674.

The spelling of 3686878680 in words is "three billion, six hundred eighty-six million, eight hundred seventy-eight thousand, six hundred eighty".