12459632689 has 16 divisors (see below), whose sum is σ = 14527881216. Its totient is φ = 10465131600.

The previous prime is 12459632687. The next prime is 12459632701. The reversal of 12459632689 is 98623695421.

12459632689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12459632689 - 2¹ = 12459632687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12459632681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20034 + ... + 159124.

It is an arithmetic number, because the mean of its divisors is an integer number (907992576).

Almost surely, 2^12459632689 is an apocalyptic number.

It is an amenable number.

12459632689 is a deficient number, since it is larger than the sum of its proper divisors (2068248527).

12459632689 is a wasteful number, since it uses less digits than its factorization.

12459632689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139356.

The product of its digits is 5598720, while the sum is 55.

The spelling of 12459632689 in words is "twelve billion, four hundred fifty-nine million, six hundred thirty-two thousand, six hundred eighty-nine".