12452543461 has 2 divisors, whose sum is σ = 12452543462. Its totient is φ = 12452543460.

The previous prime is 12452543449. The next prime is 12452543471. The reversal of 12452543461 is 16434525421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10041242436 + 2411301025 = 100206^2 + 49105^2 .

It is a cyclic number.

It is not a de Polignac number, because 12452543461 - 2⁵ = 12452543429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12452543461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12452543471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6226271730 + 6226271731.

It is an arithmetic number, because the mean of its divisors is an integer number (6226271731).

Almost surely, 2^12452543461 is an apocalyptic number.

It is an amenable number.

12452543461 is a deficient number, since it is larger than the sum of its proper divisors (1).

12452543461 is an equidigital number, since it uses as much as digits as its factorization.

12452543461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 115200, while the sum is 37.

The spelling of 12452543461 in words is "twelve billion, four hundred fifty-two million, five hundred forty-three thousand, four hundred sixty-one".