12268428444 has 36 divisors (see below), whose sum is σ = 31041519600. Its totient is φ = 4085565120.

The previous prime is 12268428409. The next prime is 12268428461. The reversal of 12268428444 is 44482486221.

12268428444 is a `hidden beast` number, since 122 + 6 + 84 + 2 + 8 + 444 = 666.

12268428444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×12268428444² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12268428444.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 124672 + ... + 200199.

Almost surely, 2^12268428444 is an apocalyptic number.

It is an amenable number.

12268428444 is an abundant number, since it is smaller than the sum of its proper divisors (18773091156).

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

12268428444 is a wasteful number, since it uses less digits than its factorization.

12268428444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325930 (or 325925 counting only the distinct ones).

The product of its digits is 786432, while the sum is 45.

The spelling of 12268428444 in words is "twelve billion, two hundred sixty-eight million, four hundred twenty-eight thousand, four hundred forty-four".