6886666964 has 12 divisors (see below), whose sum is σ = 12685965600. Its totient is φ = 3262105368.

The previous prime is 6886666961. The next prime is 6886666973. The reversal of 6886666964 is 4696666886.

It is a self number, because there is not a number n which added to its sum of digits gives 6886666964.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6886666961) 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 3 ways as a sum of consecutive naturals, for example, 45306944 + ... + 45307095.

It is an arithmetic number, because the mean of its divisors is an integer number (1057163800).

Almost surely, 2^6886666964 is an apocalyptic number.

It is an amenable number.

6886666964 is a deficient number, since it is larger than the sum of its proper divisors (5799298636).

6886666964 is a wasteful number, since it uses less digits than its factorization.

6886666964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90614062 (or 90614060 counting only the distinct ones).

The product of its digits is 107495424, while the sum is 65.

The square root of 6886666964 is about 82985.9443761412. The cubic root of 6886666964 is about 1902.5512324385.

The spelling of 6886666964 in words is "six billion, eight hundred eighty-six million, six hundred sixty-six thousand, nine hundred sixty-four".