12791987182 has 32 divisors (see below), whose sum is σ = 21183136128. Its totient is φ = 5756165856.

The previous prime is 12791987179. The next prime is 12791987183. The reversal of 12791987182 is 28178919721.

It is a super-2 number, since 2×12791987182² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12791987183) 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 15 ways as a sum of consecutive naturals, for example, 619273 + ... + 639595.

It is an arithmetic number, because the mean of its divisors is an integer number (661973004).

Almost surely, 2^12791987182 is an apocalyptic number.

12791987182 is a deficient number, since it is larger than the sum of its proper divisors (8391148946).

12791987182 is a wasteful number, since it uses less digits than its factorization.

12791987182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20944.

The product of its digits is 1016064, while the sum is 55.

The spelling of 12791987182 in words is "twelve billion, seven hundred ninety-one million, nine hundred eighty-seven thousand, one hundred eighty-two".