12273788045 has 16 divisors (see below), whose sum is σ = 14775672240. Its totient is φ = 9787666944.

The previous prime is 12273788039. The next prime is 12273788047. The reversal of 12273788045 is 54088737221.

12273788045 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 8 ways, for example, as 1970116996 + 10303671049 = 44386^2 + 101507^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12273788045 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12273788047) 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 15 ways as a sum of consecutive naturals, for example, 2264759 + ... + 2270171.

It is an arithmetic number, because the mean of its divisors is an integer number (923479515).

Almost surely, 2^12273788045 is an apocalyptic number.

It is an amenable number.

12273788045 is a deficient number, since it is larger than the sum of its proper divisors (2501884195).

12273788045 is an equidigital number, since it uses as much as digits as its factorization.

12273788045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784.

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 12273788045 in words is "twelve billion, two hundred seventy-three million, seven hundred eighty-eight thousand, forty-five".