6718734220 has 96 divisors (see below), whose sum is σ = 16321870656. Its totient is φ = 2296012800.

The previous prime is 6718734193. The next prime is 6718734223. The reversal of 6718734220 is 224378176.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6718734223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4535880 + ... + 4537360.

It is an arithmetic number, because the mean of its divisors is an integer number (170019486).

Almost surely, 2^6718734220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6718734220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8160935328).

6718734220 is an abundant number, since it is smaller than the sum of its proper divisors (9603136436).

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

6718734220 is a wasteful number, since it uses less digits than its factorization.

6718734220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731 (or 2729 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 6718734220 is about 81967.8852966209. The cubic root of 6718734220 is about 1886.9591013000.

The spelling of 6718734220 in words is "six billion, seven hundred eighteen million, seven hundred thirty-four thousand, two hundred twenty".