7179678666 has 24 divisors (see below), whose sum is σ = 16232317920. Its totient is φ = 2289172776.

The previous prime is 7179678659. The next prime is 7179678679. The reversal of 7179678666 is 6668769717.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8670696 + ... + 8671523.

It is an arithmetic number, because the mean of its divisors is an integer number (676346580).

Almost surely, 2^7179678666 is an apocalyptic number.

7179678666 is an abundant number, since it is smaller than the sum of its proper divisors (9052639254).

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

7179678666 is a wasteful number, since it uses less digits than its factorization.

7179678666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17342250 (or 17342247 counting only the distinct ones).

The product of its digits is 32006016, while the sum is 63.

The square root of 7179678666 is about 84732.9845219676. The cubic root of 7179678666 is about 1929.1603877454.

The spelling of 7179678666 in words is "seven billion, one hundred seventy-nine million, six hundred seventy-eight thousand, six hundred sixty-six".