12017894948453 has 2 divisors, whose sum is σ = 12017894948454. Its totient is φ = 12017894948452.

The previous prime is 12017894948431. The next prime is 12017894948461. The reversal of 12017894948453 is 35484949871021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11332123807684 + 685771140769 = 3366322^2 + 828113^2 .

It is a cyclic number.

It is not a de Polignac number, because 12017894948453 - 2²⁰ = 12017893899877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12017894948453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12017894948483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6008947474226 + 6008947474227.

It is an arithmetic number, because the mean of its divisors is an integer number (6008947474227).

Almost surely, 2^{12017894948453} is an apocalyptic number.

It is an amenable number.

12017894948453 is a deficient number, since it is larger than the sum of its proper divisors (1).

12017894948453 is an equidigital number, since it uses as much as digits as its factorization.

12017894948453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69672960, while the sum is 65.

The spelling of 12017894948453 in words is "twelve trillion, seventeen billion, eight hundred ninety-four million, nine hundred forty-eight thousand, four hundred fifty-three".