6718382856 has 48 divisors (see below), whose sum is σ = 18204246060. Its totient is φ = 2238399360.

The previous prime is 6718382849. The next prime is 6718382893. The reversal of 6718382856 is 6582838176.

It can be written as a sum of positive squares in 2 ways, for example, as 6392002500 + 326380356 = 79950^2 + 18066^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138906 + ... + 180918.

Almost surely, 2^6718382856 is an apocalyptic number.

It is an amenable number.

6718382856 is an abundant number, since it is smaller than the sum of its proper divisors (11485863204).

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

6718382856 is a wasteful number, since it uses less digits than its factorization.

6718382856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44246 (or 44239 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 6718382856 is about 81965.7419657749. The cubic root of 6718382856 is about 1886.9262071549.

The spelling of 6718382856 in words is "six billion, seven hundred eighteen million, three hundred eighty-two thousand, eight hundred fifty-six".