12193532267509 has 2 divisors, whose sum is σ = 12193532267510. Its totient is φ = 12193532267508.

The previous prime is 12193532267503. The next prime is 12193532267519. The reversal of 12193532267509 is 90576223539121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11198915004484 + 994617263025 = 3346478^2 + 997305^2 .

It is a cyclic number.

It is not a de Polignac number, because 12193532267509 - 2¹¹ = 12193532265461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12193532267509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12193532267503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6096766133754 + 6096766133755.

It is an arithmetic number, because the mean of its divisors is an integer number (6096766133755).

Almost surely, 2^{12193532267509} is an apocalyptic number.

It is an amenable number.

12193532267509 is a deficient number, since it is larger than the sum of its proper divisors (1).

12193532267509 is an equidigital number, since it uses as much as digits as its factorization.

12193532267509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 12193532267509 in words is "twelve trillion, one hundred ninety-three billion, five hundred thirty-two million, two hundred sixty-seven thousand, five hundred nine".