6691839696 has 120 divisors (see below), whose sum is σ = 19958365440. Its totient is φ = 2088185088.

The previous prime is 6691839689. The next prime is 6691839703. The reversal of 6691839696 is 6969381966.

It is an interprime number because it is at equal distance from previous prime (6691839689) and next prime (6691839703).

It is a super-2 number, since 2×6691839696² = 89561437033922744832, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134170 + ... + 177158.

It is an arithmetic number, because the mean of its divisors is an integer number (166319712).

Almost surely, 2^6691839696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6691839696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9979182720).

6691839696 is an abundant number, since it is smaller than the sum of its proper divisors (13266525744).

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

6691839696 is a wasteful number, since it uses less digits than its factorization.

6691839696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43073 (or 43064 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 63.

The square root of 6691839696 is about 81803.6655413436. The cubic root of 6691839696 is about 1884.4379551717.

The spelling of 6691839696 in words is "six billion, six hundred ninety-one million, eight hundred thirty-nine thousand, six hundred ninety-six".