12987187199 has 16 divisors (see below), whose sum is σ = 15491589120. Its totient is φ = 10645293120.

The previous prime is 12987187133. The next prime is 12987187201. The reversal of 12987187199 is 99178178921.

It is not a de Polignac number, because 12987187199 - 2¹² = 12987183103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12987187099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939659 + ... + 953379.

It is an arithmetic number, because the mean of its divisors is an integer number (968224320).

Almost surely, 2^12987187199 is an apocalyptic number.

12987187199 is a deficient number, since it is larger than the sum of its proper divisors (2504401921).

12987187199 is a wasteful number, since it uses less digits than its factorization.

12987187199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19630.

The product of its digits is 4572288, while the sum is 62.

The spelling of 12987187199 in words is "twelve billion, nine hundred eighty-seven million, one hundred eighty-seven thousand, one hundred ninety-nine".