6688888888898 has 8 divisors (see below), whose sum is σ = 10033346369280. Its totient is φ = 3344440099140.

The previous prime is 6688888888883. The next prime is 6688888888901. The reversal of 6688888888898 is 8988888888866.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6688888888798 and 6688888888807.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326423 + ... + 3672101.

It is an arithmetic number, because the mean of its divisors is an integer number (1254168296160).

Almost surely, 2^{6688888888898} is an apocalyptic number.

6688888888898 is a deficient number, since it is larger than the sum of its proper divisors (3344457480382).

6688888888898 is a wasteful number, since it uses less digits than its factorization.

6688888888898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4345312.

The product of its digits is 347892350976, while the sum is 101.

The spelling of 6688888888898 in words is "six trillion, six hundred eighty-eight billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred ninety-eight".