12268475545 has 4 divisors (see below), whose sum is σ = 14722170660. Its totient is φ = 9814780432.

The previous prime is 12268475533. The next prime is 12268475591. The reversal of 12268475545 is 54557486221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54557486221 = 7 ⋅7793926603.

It can be written as a sum of positive squares in 2 ways, for example, as 9216576009 + 3051899536 = 96003^2 + 55244^2 .

It is a cyclic number.

It is not a de Polignac number, because 12268475545 - 2¹⁹ = 12267951257 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226847550 + ... + 1226847559.

It is an arithmetic number, because the mean of its divisors is an integer number (3680542665).

Almost surely, 2^12268475545 is an apocalyptic number.

It is an amenable number.

12268475545 is a deficient number, since it is larger than the sum of its proper divisors (2453695115).

12268475545 is an equidigital number, since it uses as much as digits as its factorization.

12268475545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453695114.

The product of its digits is 2688000, while the sum is 49.

The spelling of 12268475545 in words is "twelve billion, two hundred sixty-eight million, four hundred seventy-five thousand, five hundred forty-five".