12933173844 has 72 divisors (see below), whose sum is σ = 35268465960. Its totient is φ = 3980900352.

The previous prime is 12933173837. The next prime is 12933173849. The reversal of 12933173844 is 44837133921.

12933173844 is a `hidden beast` number, since 1 + 293 + 317 + 3 + 8 + 44 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 890306244 + 12042867600 = 29838^2 + 109740^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12933173844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12933173849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166929 + ... + 231800.

It is an arithmetic number, because the mean of its divisors is an integer number (489839805).

Almost surely, 2^12933173844 is an apocalyptic number.

It is an amenable number.

12933173844 is an abundant number, since it is smaller than the sum of its proper divisors (22335292116).

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

12933173844 is a wasteful number, since it uses less digits than its factorization.

12933173844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398809 (or 398804 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 12933173844 in words is "twelve billion, nine hundred thirty-three million, one hundred seventy-three thousand, eight hundred forty-four".