12194573761 has 2 divisors, whose sum is σ = 12194573762. Its totient is φ = 12194573760.

The previous prime is 12194573737. The next prime is 12194573771. The reversal of 12194573761 is 16737549121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11144813761 + 1049760000 = 105569^2 + 32400^2 .

It is a cyclic number.

It is not a de Polignac number, because 12194573761 - 2¹⁹ = 12194049473 is a prime.

It is not a weakly prime, because it can be changed into another prime (12194573771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6097286880 + 6097286881.

It is an arithmetic number, because the mean of its divisors is an integer number (6097286881).

Almost surely, 2^12194573761 is an apocalyptic number.

It is an amenable number.

12194573761 is a deficient number, since it is larger than the sum of its proper divisors (1).

12194573761 is an equidigital number, since it uses as much as digits as its factorization.

12194573761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 46.

The spelling of 12194573761 in words is "twelve billion, one hundred ninety-four million, five hundred seventy-three thousand, seven hundred sixty-one".