12882693128 has 12 divisors (see below), whose sum is σ = 24155651565. Its totient is φ = 6441186048.

The previous prime is 12882693119. The next prime is 12882693133. The reversal of 12882693128 is 82139628821.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 7617449284 + 5265243844 = 87278^2 + 72562^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=80258.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 300968 + ... + 341096.

Almost surely, 2^12882693128 is an apocalyptic number.

It is an amenable number.

12882693128 is a deficient number, since it is larger than the sum of its proper divisors (11272958437).

12882693128 is an frugal number, since it uses more digits than its factorization.

12882693128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80264 (or 40131 counting only the distinct ones).

The product of its digits is 663552, while the sum is 50.

Multiplying 12882693128 by its sum of digits (50), we get a square (644134656400 = 802580²).

The spelling of 12882693128 in words is "twelve billion, eight hundred eighty-two million, six hundred ninety-three thousand, one hundred twenty-eight".