12143996887 has 8 divisors (see below), whose sum is σ = 13365236880. Its totient is φ = 10942296960.

The previous prime is 12143996861. The next prime is 12143996929. The reversal of 12143996887 is 78869934121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12143996887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143996827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4883712 + ... + 4886197.

It is an arithmetic number, because the mean of its divisors is an integer number (1670654610).

Almost surely, 2^12143996887 is an apocalyptic number.

12143996887 is a deficient number, since it is larger than the sum of its proper divisors (1221239993).

12143996887 is a wasteful number, since it uses less digits than its factorization.

12143996887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9770033.

The product of its digits is 5225472, while the sum is 58.

The spelling of 12143996887 in words is "twelve billion, one hundred forty-three million, nine hundred ninety-six thousand, eight hundred eighty-seven".