3684128218 has 8 divisors (see below), whose sum is σ = 5527323360. Its totient is φ = 1841687100.

The previous prime is 3684128143. The next prime is 3684128233. The reversal of 3684128218 is 8128214863.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176128 + ... + 195931.

It is an arithmetic number, because the mean of its divisors is an integer number (690915420).

Almost surely, 2^3684128218 is an apocalyptic number.

3684128218 is a deficient number, since it is larger than the sum of its proper divisors (1843195142).

3684128218 is a wasteful number, since it uses less digits than its factorization.

3684128218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377012.

The product of its digits is 147456, while the sum is 43.

The square root of 3684128218 is about 60697.0198444701. The cubic root of 3684128218 is about 1544.4656206751.

The spelling of 3684128218 in words is "three billion, six hundred eighty-four million, one hundred twenty-eight thousand, two hundred eighteen".