6989944199 has 16 divisors (see below), whose sum is σ = 8162380800. Its totient is φ = 5861098464.

The previous prime is 6989944193. The next prime is 6989944259. The reversal of 6989944199 is 9914499896.

It is a cyclic number.

It is not a de Polignac number, because 6989944199 - 2⁴ = 6989944183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6989944193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 963317 + ... + 970545.

It is an arithmetic number, because the mean of its divisors is an integer number (510148800).

Almost surely, 2^6989944199 is an apocalyptic number.

6989944199 is a deficient number, since it is larger than the sum of its proper divisors (1172436601).

6989944199 is a wasteful number, since it uses less digits than its factorization.

6989944199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10222.

The product of its digits is 45349632, while the sum is 68.

The square root of 6989944199 is about 83605.8861504380. The cubic root of 6989944199 is about 1912.0147411629.

The spelling of 6989944199 in words is "six billion, nine hundred eighty-nine million, nine hundred forty-four thousand, one hundred ninety-nine".