8026820081685 has 64 divisors (see below), whose sum is σ = 14373307134720. Its totient is φ = 4250050560000.

The previous prime is 8026820081677. The next prime is 8026820081723. The reversal of 8026820081685 is 5861800286208.

It is a happy number.

It is not a de Polignac number, because 8026820081685 - 2³ = 8026820081677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11071125 + ... + 11773845.

It is an arithmetic number, because the mean of its divisors is an integer number (224582923980).

Almost surely, 2^{8026820081685} is an apocalyptic number.

It is an amenable number.

8026820081685 is a deficient number, since it is larger than the sum of its proper divisors (6346487053035).

8026820081685 is a wasteful number, since it uses less digits than its factorization.

8026820081685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703347 (or 703341 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 54.

The spelling of 8026820081685 in words is "eight trillion, twenty-six billion, eight hundred twenty million, eighty-one thousand, six hundred eighty-five".