12642780382 has 16 divisors (see below), whose sum is σ = 19248399360. Its totient is φ = 6227307928.

The previous prime is 12642780299. The next prime is 12642780383. The reversal of 12642780382 is 28308724621.

12642780382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642780383) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 126718 + ... + 203329.

It is an arithmetic number, because the mean of its divisors is an integer number (1203024960).

Almost surely, 2^12642780382 is an apocalyptic number.

12642780382 is a deficient number, since it is larger than the sum of its proper divisors (6605618978).

12642780382 is a wasteful number, since it uses less digits than its factorization.

12642780382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330335.

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

The spelling of 12642780382 in words is "twelve billion, six hundred forty-two million, seven hundred eighty thousand, three hundred eighty-two".