6989963799 has 16 divisors (see below), whose sum is σ = 11470710272. Its totient is φ = 3687013728.

The previous prime is 6989963749. The next prime is 6989963807. The reversal of 6989963799 is 9973699896.

It is not a de Polignac number, because 6989963799 - 2¹¹ = 6989961751 is a prime.

It is a super-2 number, since 2×6989963799² = 97719187822661024802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6989963799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6989963749) 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, 12801859 + ... + 12802404.

It is an arithmetic number, because the mean of its divisors is an integer number (716919392).

Almost surely, 2^6989963799 is an apocalyptic number.

6989963799 is a deficient number, since it is larger than the sum of its proper divisors (4480746473).

6989963799 is a wasteful number, since it uses less digits than its factorization.

6989963799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25604286.

The product of its digits is 357128352, while the sum is 75.

The square root of 6989963799 is about 83606.0033669832. The cubic root of 6989963799 is about 1912.0165282756.

The spelling of 6989963799 in words is "six billion, nine hundred eighty-nine million, nine hundred sixty-three thousand, seven hundred ninety-nine".