12186186473 has 2 divisors, whose sum is σ = 12186186474. Its totient is φ = 12186186472.

The previous prime is 12186186421. The next prime is 12186186479. The reversal of 12186186473 is 37468168121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8303401129 + 3882785344 = 91123^2 + 62312^2 .

It is a cyclic number.

It is not a de Polignac number, because 12186186473 - 2¹⁰ = 12186185449 is a prime.

It is not a weakly prime, because it can be changed into another prime (12186186479) 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, 6093093236 + 6093093237.

It is an arithmetic number, because the mean of its divisors is an integer number (6093093237).

Almost surely, 2^12186186473 is an apocalyptic number.

It is an amenable number.

12186186473 is a deficient number, since it is larger than the sum of its proper divisors (1).

12186186473 is an equidigital number, since it uses as much as digits as its factorization.

12186186473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 47.

The spelling of 12186186473 in words is "twelve billion, one hundred eighty-six million, one hundred eighty-six thousand, four hundred seventy-three".