808840844823 has 16 divisors (see below), whose sum is σ = 1177316845056. Its totient is φ = 489864459840.

The previous prime is 808840844821. The next prime is 808840844827. The reversal of 808840844823 is 328448048808.

It is not a de Polignac number, because 808840844823 - 2¹ = 808840844821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808840844821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8504815 + ... + 8599392.

It is an arithmetic number, because the mean of its divisors is an integer number (73582302816).

Almost surely, 2^808840844823 is an apocalyptic number.

808840844823 is a deficient number, since it is larger than the sum of its proper divisors (368476000233).

808840844823 is a wasteful number, since it uses less digits than its factorization.

808840844823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17105654.

The product of its (nonzero) digits is 12582912, while the sum is 57.

The spelling of 808840844823 in words is "eight hundred eight billion, eight hundred forty million, eight hundred forty-four thousand, eight hundred twenty-three".