12584127987 has 12 divisors (see below), whose sum is σ = 18263223784. Its totient is φ = 8349657120.

The previous prime is 12584127971. The next prime is 12584128001. The reversal of 12584127987 is 78972148521.

12584127987 is a `hidden beast` number, since 1 + 258 + 41 + 279 + 87 = 666.

It is not a de Polignac number, because 12584127987 - 2⁴ = 12584127971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12584127887) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3311458 + ... + 3315255.

Almost surely, 2^12584127987 is an apocalyptic number.

12584127987 is a deficient number, since it is larger than the sum of its proper divisors (5679095797).

12584127987 is a wasteful number, since it uses less digits than its factorization.

12584127987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6626930 (or 6626927 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 54.

Adding to 12584127987 its sum of digits (54), we get a square (12584128041 = 112179²).

The spelling of 12584127987 in words is "twelve billion, five hundred eighty-four million, one hundred twenty-seven thousand, nine hundred eighty-seven".