6718944465 has 16 divisors (see below), whose sum is σ = 11944790400. Its totient is φ = 3583436976.

The previous prime is 6718944457. The next prime is 6718944467. The reversal of 6718944465 is 5644498176.

6718944465 is a `hidden beast` number, since 67 + 1 + 89 + 44 + 465 = 666.

It is not a de Polignac number, because 6718944465 - 2³ = 6718944457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6718944467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24884845 + ... + 24885114.

It is an arithmetic number, because the mean of its divisors is an integer number (746549400).

Almost surely, 2^6718944465 is an apocalyptic number.

It is an amenable number.

6718944465 is a deficient number, since it is larger than the sum of its proper divisors (5225845935).

6718944465 is a wasteful number, since it uses less digits than its factorization.

6718944465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49769973 (or 49769967 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 6718944465 is about 81969.1677705709. The cubic root of 6718944465 is about 1886.9787835579.

The spelling of 6718944465 in words is "six billion, seven hundred eighteen million, nine hundred forty-four thousand, four hundred sixty-five".