12731607889 has 32 divisors (see below), whose sum is σ = 17169143040. Its totient is φ = 9117446400.

The previous prime is 12731607827. The next prime is 12731607893. The reversal of 12731607889 is 98870613721.

It is a cyclic number.

It is not a de Polignac number, because 12731607889 - 2¹³ = 12731599697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12731607089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201459 + ... + 256999.

It is an arithmetic number, because the mean of its divisors is an integer number (536535720).

Almost surely, 2^12731607889 is an apocalyptic number.

It is an amenable number.

12731607889 is a deficient number, since it is larger than the sum of its proper divisors (4437535151).

12731607889 is a wasteful number, since it uses less digits than its factorization.

12731607889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55801.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The spelling of 12731607889 in words is "twelve billion, seven hundred thirty-one million, six hundred seven thousand, eight hundred eighty-nine".