6681189218 has 8 divisors (see below), whose sum is σ = 10932855120. Its totient is φ = 3036904180.

The previous prime is 6681189209. The next prime is 6681189253. The reversal of 6681189218 is 8129811866.

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, 151845188 + ... + 151845231.

It is an arithmetic number, because the mean of its divisors is an integer number (1366606890).

Almost surely, 2^6681189218 is an apocalyptic number.

6681189218 is a deficient number, since it is larger than the sum of its proper divisors (4251665902).

6681189218 is a wasteful number, since it uses less digits than its factorization.

6681189218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303690432.

The product of its digits is 331776, while the sum is 50.

The square root of 6681189218 is about 81738.5418147400. The cubic root of 6681189218 is about 1883.4376910212.

The spelling of 6681189218 in words is "six billion, six hundred eighty-one million, one hundred eighty-nine thousand, two hundred eighteen".