6718849911 has 16 divisors (see below), whose sum is σ = 9957522400. Its totient is φ = 4477581504.

The previous prime is 6718849897. The next prime is 6718849913. The reversal of 6718849911 is 1199488176.

6718849911 is a `hidden beast` number, since 6 + 71 + 88 + 499 + 1 + 1 = 666.

It is not a de Polignac number, because 6718849911 - 2¹⁰ = 6718848887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6718849913) 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, 31035 + ... + 120003.

It is an arithmetic number, because the mean of its divisors is an integer number (622345150).

Almost surely, 2^6718849911 is an apocalyptic number.

6718849911 is a deficient number, since it is larger than the sum of its proper divisors (3238672489).

6718849911 is a wasteful number, since it uses less digits than its factorization.

6718849911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91775 (or 91769 counting only the distinct ones).

The product of its digits is 870912, while the sum is 54.

The square root of 6718849911 is about 81968.5910028957. The cubic root of 6718849911 is about 1886.9699318585.

The spelling of 6718849911 in words is "six billion, seven hundred eighteen million, eight hundred forty-nine thousand, nine hundred eleven".