6718731912 has 24 divisors (see below), whose sum is σ = 18196565790. Its totient is φ = 2239577280.

The previous prime is 6718731907. The next prime is 6718731997. The reversal of 6718731912 is 2191378176.

It can be written as a sum of positive squares in only one way, i.e., 3367016676 + 3351715236 = 58026^2 + 57894^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46657789 + ... + 46657932.

Almost surely, 2^6718731912 is an apocalyptic number.

It is an amenable number.

6718731912 is an abundant number, since it is smaller than the sum of its proper divisors (11477833878).

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

6718731912 is a wasteful number, since it uses less digits than its factorization.

6718731912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93315733 (or 93315726 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 6718731912 is about 81967.8712179351. The cubic root of 6718731912 is about 1886.9588852324.

It can be divided in two parts, 67187 and 31912, that added together give a palindrome (99099).

The spelling of 6718731912 in words is "six billion, seven hundred eighteen million, seven hundred thirty-one thousand, nine hundred twelve".