12240476777 has 2 divisors, whose sum is σ = 12240476778. Its totient is φ = 12240476776.

The previous prime is 12240476737. The next prime is 12240476779. The reversal of 12240476777 is 77767404221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12234793321 + 5683456 = 110611^2 + 2384^2 .

It is a cyclic number.

It is not a de Polignac number, because 12240476777 - 2¹⁸ = 12240214633 is a prime.

Together with 12240476779, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12240476779) 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, 6120238388 + 6120238389.

It is an arithmetic number, because the mean of its divisors is an integer number (6120238389).

Almost surely, 2^12240476777 is an apocalyptic number.

It is an amenable number.

12240476777 is a deficient number, since it is larger than the sum of its proper divisors (1).

12240476777 is an equidigital number, since it uses as much as digits as its factorization.

12240476777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 921984, while the sum is 47.

The spelling of 12240476777 in words is "twelve billion, two hundred forty million, four hundred seventy-six thousand, seven hundred seventy-seven".