6988668895 has 16 divisors (see below), whose sum is σ = 9045876672. Its totient is φ = 5152654080.

The previous prime is 6988668889. The next prime is 6988668913. The reversal of 6988668895 is 5988668896.

It is not a de Polignac number, because 6988668895 - 2⁹ = 6988668383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44182 + ... + 126211.

It is an arithmetic number, because the mean of its divisors is an integer number (565367292).

Almost surely, 2^6988668895 is an apocalyptic number.

6988668895 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6988668895 is a deficient number, since it is larger than the sum of its proper divisors (2057207777).

6988668895 is a wasteful number, since it uses less digits than its factorization.

6988668895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171042.

The product of its digits is 358318080, while the sum is 73.

The square root of 6988668895 is about 83598.2589232575. The cubic root of 6988668895 is about 1911.8984527593.

Subtracting from 6988668895 its reverse (5988668896), we obtain a palindrome (999999999).

The spelling of 6988668895 in words is "six billion, nine hundred eighty-eight million, six hundred sixty-eight thousand, eight hundred ninety-five".