6718489164 has 48 divisors (see below), whose sum is σ = 17438279040. Its totient is φ = 2236928400.

The previous prime is 6718489163. The next prime is 6718489171. The reversal of 6718489164 is 4619848176.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 6718489164.

It is not an unprimeable number, because it can be changed into a prime (6718489163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60139 + ... + 130589.

It is an arithmetic number, because the mean of its divisors is an integer number (363297480).

Almost surely, 2^6718489164 is an apocalyptic number.

It is an amenable number.

6718489164 is an abundant number, since it is smaller than the sum of its proper divisors (10719789876).

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

6718489164 is a wasteful number, since it uses less digits than its factorization.

6718489164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71347 (or 71339 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 6718489164 is about 81966.3904536487. The cubic root of 6718489164 is about 1886.9361596637.

The spelling of 6718489164 in words is "six billion, seven hundred eighteen million, four hundred eighty-nine thousand, one hundred sixty-four".