12800000881 has 2 divisors, whose sum is σ = 12800000882. Its totient is φ = 12800000880.

The previous prime is 12800000879. The next prime is 12800000891. The reversal of 12800000881 is 18800000821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12452551281 + 347449600 = 111591^2 + 18640^2 .

It is a cyclic number.

It is not a de Polignac number, because 12800000881 - 2¹ = 12800000879 is a prime.

It is a super-2 number, since 2×12800000881² (a number of 21 digits) contains 22 as substring.

Together with 12800000879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12800000891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6400000440 + 6400000441.

It is an arithmetic number, because the mean of its divisors is an integer number (6400000441).

Almost surely, 2^12800000881 is an apocalyptic number.

It is an amenable number.

12800000881 is a deficient number, since it is larger than the sum of its proper divisors (1).

12800000881 is an equidigital number, since it uses as much as digits as its factorization.

12800000881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 28.

The spelling of 12800000881 in words is "twelve billion, eight hundred million, eight hundred eighty-one", and thus it is an aban number.