12987144184 has 32 divisors (see below), whose sum is σ = 27839318400. Its totient is φ = 5563974240.

The previous prime is 12987144179. The next prime is 12987144217. The reversal of 12987144184 is 48144178921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127347 + ... + 205405.

It is an arithmetic number, because the mean of its divisors is an integer number (869978700).

Almost surely, 2^12987144184 is an apocalyptic number.

12987144184 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12987144184 is an abundant number, since it is smaller than the sum of its proper divisors (14852174216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12987144184 is a wasteful number, since it uses less digits than its factorization.

12987144184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81043 (or 81039 counting only the distinct ones).

The product of its digits is 516096, while the sum is 49.

The spelling of 12987144184 in words is "twelve billion, nine hundred eighty-seven million, one hundred forty-four thousand, one hundred eighty-four".