12811419888 has 80 divisors (see below), whose sum is σ = 34972523520. Its totient is φ = 4033066752.

The previous prime is 12811419833. The next prime is 12811419889. The reversal of 12811419888 is 88891411821.

It is a self number, because there is not a number n which added to its sum of digits gives 12811419888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12811419889) 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 15 ways as a sum of consecutive naturals, for example, 13770 + ... + 160662.

It is an arithmetic number, because the mean of its divisors is an integer number (437156544).

Almost surely, 2^12811419888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12811419888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17486261760).

12811419888 is an abundant number, since it is smaller than the sum of its proper divisors (22161103632).

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

12811419888 is a wasteful number, since it uses less digits than its factorization.

12811419888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147006 (or 147000 counting only the distinct ones).

The product of its digits is 294912, while the sum is 51.

The spelling of 12811419888 in words is "twelve billion, eight hundred eleven million, four hundred nineteen thousand, eight hundred eighty-eight".