12143888892 has 72 divisors (see below), whose sum is σ = 31468268832. Its totient is φ = 3946406400.

The previous prime is 12143888879. The next prime is 12143888899. The reversal of 12143888892 is 29888834121.

12143888892 is a `hidden beast` number, since 121 + 438 + 8 + 8 + 89 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143888899) 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 23 ways as a sum of consecutive naturals, for example, 3364953 + ... + 3368559.

Almost surely, 2^12143888892 is an apocalyptic number.

12143888892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12143888892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15734134416).

12143888892 is an abundant number, since it is smaller than the sum of its proper divisors (19324379940).

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

12143888892 is a wasteful number, since it uses less digits than its factorization.

12143888892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5939 (or 5934 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 54.

The spelling of 12143888892 in words is "twelve billion, one hundred forty-three million, eight hundred eighty-eight thousand, eight hundred ninety-two".