12808809256 has 16 divisors (see below), whose sum is σ = 25429253940. Its totient is φ = 6027674880.

The previous prime is 12808809241. The next prime is 12808809259. The reversal of 12808809256 is 65290880821.

It can be written as a sum of positive squares in 2 ways, for example, as 12301028100 + 507781156 = 110910^2 + 22534^2 .

It is not an unprimeable number, because it can be changed into a prime (12808809259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47091075 + ... + 47091346.

Almost surely, 2^12808809256 is an apocalyptic number.

It is an amenable number.

12808809256 is a deficient number, since it is larger than the sum of its proper divisors (12620444684).

12808809256 is a wasteful number, since it uses less digits than its factorization.

12808809256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94182444 (or 94182440 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 49.

The spelling of 12808809256 in words is "twelve billion, eight hundred eight million, eight hundred nine thousand, two hundred fifty-six".