808774728928 has 24 divisors (see below), whose sum is σ = 1592323826688. Its totient is φ = 404375026944.

The previous prime is 808774728863. The next prime is 808774728929. The reversal of 808774728928 is 829827477808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808774728929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729300 + ... + 1466092.

It is an arithmetic number, because the mean of its divisors is an integer number (66346826112).

Almost surely, 2^808774728928 is an apocalyptic number.

It is an amenable number.

808774728928 is a deficient number, since it is larger than the sum of its proper divisors (783549097760).

808774728928 is a wasteful number, since it uses less digits than its factorization.

808774728928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771106 (or 771098 counting only the distinct ones).

The product of its (nonzero) digits is 202309632, while the sum is 70.

The spelling of 808774728928 in words is "eight hundred eight billion, seven hundred seventy-four million, seven hundred twenty-eight thousand, nine hundred twenty-eight".