808026886820 has 12 divisors (see below), whose sum is σ = 1696856462364. Its totient is φ = 323210754720.

The previous prime is 808026886811. The next prime is 808026886867. The reversal of 808026886820 is 28688620808.

It can be written as a sum of positive squares in 2 ways, for example, as 509270631424 + 298756255396 = 713632^2 + 546586^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20200672151 + ... + 20200672190.

It is an arithmetic number, because the mean of its divisors is an integer number (141404705197).

Almost surely, 2^808026886820 is an apocalyptic number.

It is an amenable number.

808026886820 is an abundant number, since it is smaller than the sum of its proper divisors (888829575544).

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

808026886820 is a wasteful number, since it uses less digits than its factorization.

808026886820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40401344350 (or 40401344348 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 56.

The spelling of 808026886820 in words is "eight hundred eight billion, twenty-six million, eight hundred eighty-six thousand, eight hundred twenty".