13823785828 has 24 divisors (see below), whose sum is σ = 24871211064. Its totient is φ = 6718944000.

The previous prime is 13823785783. The next prime is 13823785837. The reversal of 13823785828 is 82858732831.

It can be written as a sum of positive squares in 4 ways, for example, as 1266790464 + 12556995364 = 35592^2 + 112058^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106723 + ... + 197578.

It is an arithmetic number, because the mean of its divisors is an integer number (1036300461).

Almost surely, 2^13823785828 is an apocalyptic number.

It is an amenable number.

13823785828 is a deficient number, since it is larger than the sum of its proper divisors (11047425236).

13823785828 is a wasteful number, since it uses less digits than its factorization.

13823785828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304623 (or 304621 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 55.

The spelling of 13823785828 in words is "thirteen billion, eight hundred twenty-three million, seven hundred eighty-five thousand, eight hundred twenty-eight".