12261182786 has 16 divisors (see below), whose sum is σ = 18524675328. Its totient is φ = 6086340000.

The previous prime is 12261182777. The next prime is 12261182789. The reversal of 12261182786 is 68728116221.

12261182786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12261182789) 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, 532631 + ... + 555173.

It is an arithmetic number, because the mean of its divisors is an integer number (1157792208).

Almost surely, 2^12261182786 is an apocalyptic number.

12261182786 is a deficient number, since it is larger than the sum of its proper divisors (6263492542).

12261182786 is a wasteful number, since it uses less digits than its factorization.

12261182786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24497.

The product of its digits is 129024, while the sum is 44.

The spelling of 12261182786 in words is "twelve billion, two hundred sixty-one million, one hundred eighty-two thousand, seven hundred eighty-six".