6718766641 has 16 divisors (see below), whose sum is σ = 6983891200. Its totient is φ = 6459118848.

The previous prime is 6718766609. The next prime is 6718766651. The reversal of 6718766641 is 1466678176.

6718766641 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 6718766641 - 2⁵ = 6718766609 is a prime.

It is a super-3 number, since 3×6718766641³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6718766651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1141855 + ... + 1147723.

It is an arithmetic number, because the mean of its divisors is an integer number (436493200).

Almost surely, 2^6718766641 is an apocalyptic number.

It is an amenable number.

6718766641 is a deficient number, since it is larger than the sum of its proper divisors (265124559).

6718766641 is a wasteful number, since it uses less digits than its factorization.

6718766641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6328.

The product of its digits is 2032128, while the sum is 52.

The square root of 6718766641 is about 81968.0830628605. The cubic root of 6718766641 is about 1886.9621364453.

The spelling of 6718766641 in words is "six billion, seven hundred eighteen million, seven hundred sixty-six thousand, six hundred forty-one".