12781383106 has 16 divisors (see below), whose sum is σ = 20187316800. Its totient is φ = 6052483728.

The previous prime is 12781383103. The next prime is 12781383127. The reversal of 12781383106 is 60138318721.

It is not an unprimeable number, because it can be changed into a prime (12781383103) 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 7 ways as a sum of consecutive naturals, for example, 78315 + ... + 178033.

It is an arithmetic number, because the mean of its divisors is an integer number (1261707300).

Almost surely, 2^12781383106 is an apocalyptic number.

12781383106 is a deficient number, since it is larger than the sum of its proper divisors (7405933694).

12781383106 is a wasteful number, since it uses less digits than its factorization.

12781383106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103113.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 12781383106 in words is "twelve billion, seven hundred eighty-one million, three hundred eighty-three thousand, one hundred six".