12605991848 has 16 divisors (see below), whose sum is σ = 23706376980. Its totient is φ = 6284291328.

The previous prime is 12605991779. The next prime is 12605991857. The reversal of 12605991848 is 84819950621.

12605991848 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 2 ways, for example, as 10362832804 + 2243159044 = 101798^2 + 47362^2 .

It is a super-2 number, since 2×12605991848² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12605991848.

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 in 3 ways as a sum of consecutive naturals, for example, 2335211 + ... + 2340602.

Almost surely, 2^12605991848 is an apocalyptic number.

It is an amenable number.

12605991848 is a deficient number, since it is larger than the sum of its proper divisors (11100385132).

12605991848 is a wasteful number, since it uses less digits than its factorization.

12605991848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4676156 (or 4676152 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 53.

The spelling of 12605991848 in words is "twelve billion, six hundred five million, nine hundred ninety-one thousand, eight hundred forty-eight".