12895992128 has 28 divisors (see below), whose sum is σ = 25785848352. Its totient is φ = 6398770560.

The previous prime is 12895992119. The next prime is 12895992139. The reversal of 12895992128 is 82129959821.

It is a super-2 number, since 2×12895992128² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760700 + ... + 777467.

Almost surely, 2^12895992128 is an apocalyptic number.

It is an amenable number.

12895992128 is a deficient number, since it is larger than the sum of its proper divisors (12889856224).

12895992128 is a wasteful number, since it uses less digits than its factorization.

12895992128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538310 (or 1538300 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 56.

The spelling of 12895992128 in words is "twelve billion, eight hundred ninety-five million, nine hundred ninety-two thousand, one hundred twenty-eight".