12936559689 has 48 divisors (see below), whose sum is σ = 19287051264. Its totient is φ = 8352460800.

The previous prime is 12936559681. The next prime is 12936559723. The reversal of 12936559689 is 98695563921.

12936559689 is a `hidden beast` number, since 1 + 2 + 9 + 36 + 5 + 596 + 8 + 9 = 666.

It is not a de Polignac number, because 12936559689 - 2³ = 12936559681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12936559681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11219337 + ... + 11220489.

It is an arithmetic number, because the mean of its divisors is an integer number (401813568).

Almost surely, 2^12936559689 is an apocalyptic number.

It is an amenable number.

12936559689 is a deficient number, since it is larger than the sum of its proper divisors (6350491575).

12936559689 is a wasteful number, since it uses less digits than its factorization.

12936559689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1515 counting only the distinct ones).

The product of its digits is 31492800, while the sum is 63.

The spelling of 12936559689 in words is "twelve billion, nine hundred thirty-six million, five hundred fifty-nine thousand, six hundred eighty-nine".