6991769106 has 96 divisors (see below), whose sum is σ = 17593325568. Its totient is φ = 1965500640.

The previous prime is 6991769089. The next prime is 6991769243. The reversal of 6991769106 is 6019671996.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2832885 + ... + 2835351.

It is an arithmetic number, because the mean of its divisors is an integer number (183263808).

Almost surely, 2^6991769106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6991769106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8796662784).

6991769106 is an abundant number, since it is smaller than the sum of its proper divisors (10601556462).

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

6991769106 is a wasteful number, since it uses less digits than its factorization.

6991769106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836 (or 2833 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The square root of 6991769106 is about 83616.7991853312. The cubic root of 6991769106 is about 1912.1811204347.

The spelling of 6991769106 in words is "six billion, nine hundred ninety-one million, seven hundred sixty-nine thousand, one hundred six".