12605861922 has 16 divisors (see below), whose sum is σ = 25495002720. Its totient is φ = 4154740832.

The previous prime is 12605861909. The next prime is 12605861929. The reversal of 12605861922 is 22916850621.

12605861922 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 (12605861929) 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, 11802708 + ... + 11803775.

It is an arithmetic number, because the mean of its divisors is an integer number (1593437670).

Almost surely, 2^12605861922 is an apocalyptic number.

12605861922 is an abundant number, since it is smaller than the sum of its proper divisors (12889140798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12605861922 is a wasteful number, since it uses less digits than its factorization.

12605861922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23606577.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 12605861922 in words is "twelve billion, six hundred five million, eight hundred sixty-one thousand, nine hundred twenty-two".