12284478636481 has 2 divisors, whose sum is σ = 12284478636482. Its totient is φ = 12284478636480.

The previous prime is 12284478636457. The next prime is 12284478636523. The reversal of 12284478636481 is 18463687448221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11804068847025 + 480409789456 = 3435705^2 + 693116^2 .

It is a cyclic number.

It is not a de Polignac number, because 12284478636481 - 2²³ = 12284470247873 is a prime.

It is a super-2 number, since 2×12284478636481² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12284478636281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6142239318240 + 6142239318241.

It is an arithmetic number, because the mean of its divisors is an integer number (6142239318241).

Almost surely, 2^{12284478636481} is an apocalyptic number.

It is an amenable number.

12284478636481 is a deficient number, since it is larger than the sum of its proper divisors (1).

12284478636481 is an equidigital number, since it uses as much as digits as its factorization.

12284478636481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 99090432, while the sum is 64.

The spelling of 12284478636481 in words is "twelve trillion, two hundred eighty-four billion, four hundred seventy-eight million, six hundred thirty-six thousand, four hundred eighty-one".