12431382784 has 18 divisors (see below), whose sum is σ = 24814205990. Its totient is φ = 6215691264.

The previous prime is 12431382779. The next prime is 12431382793. The reversal of 12431382784 is 48728313421.

12431382784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7212765184 + 5218617600 = 84928^2 + 72240^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12431382784.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24279789 + ... + 24280300.

Almost surely, 2^12431382784 is an apocalyptic number.

It is an amenable number.

12431382784 is a deficient number, since it is larger than the sum of its proper divisors (12382823206).

12431382784 is an frugal number, since it uses more digits than its factorization.

12431382784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48560105 (or 48560091 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The spelling of 12431382784 in words is "twelve billion, four hundred thirty-one million, three hundred eighty-two thousand, seven hundred eighty-four".