6828802808661 has 8 divisors (see below), whose sum is σ = 10116744901760. Its totient is φ = 4552535205756.

The previous prime is 6828802808657. The next prime is 6828802808669. The reversal of 6828802808661 is 1668082088286.

It is not a de Polignac number, because 6828802808661 - 2² = 6828802808657 is a prime.

It is a super-3 number, since 3×6828802808661³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6828802808669) 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, 126459311245 + ... + 126459311298.

It is an arithmetic number, because the mean of its divisors is an integer number (1264593112720).

Almost surely, 2^{6828802808661} is an apocalyptic number.

It is an amenable number.

6828802808661 is a deficient number, since it is larger than the sum of its proper divisors (3287942093099).

6828802808661 is a wasteful number, since it uses less digits than its factorization.

6828802808661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252918622552 (or 252918622546 counting only the distinct ones).

The product of its (nonzero) digits is 28311552, while the sum is 63.

The spelling of 6828802808661 in words is "six trillion, eight hundred twenty-eight billion, eight hundred two million, eight hundred eight thousand, six hundred sixty-one".