6824299681 has 8 divisors (see below), whose sum is σ = 7274226600. Its totient is φ = 6379761408.

The previous prime is 6824299679. The next prime is 6824299733. The reversal of 6824299681 is 1869924286.

It can be written as a sum of positive squares in 4 ways, for example, as 1609293456 + 5215006225 = 40116^2 + 72215^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6824299681 - 2¹ = 6824299679 is a prime.

It is a super-3 number, since 3×6824299681³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6824299621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1344546 + ... + 1349611.

It is an arithmetic number, because the mean of its divisors is an integer number (909278325).

Almost surely, 2^6824299681 is an apocalyptic number.

It is an amenable number.

6824299681 is a deficient number, since it is larger than the sum of its proper divisors (449926919).

6824299681 is a wasteful number, since it uses less digits than its factorization.

6824299681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694323.

The product of its digits is 2985984, while the sum is 55.

The square root of 6824299681 is about 82609.3195771518. The cubic root of 6824299681 is about 1896.7904892515.

The spelling of 6824299681 in words is "six billion, eight hundred twenty-four million, two hundred ninety-nine thousand, six hundred eighty-one".