427650224557 has 2 divisors, whose sum is σ = 427650224558. Its totient is φ = 427650224556.

The previous prime is 427650224531. The next prime is 427650224579. The reversal of 427650224557 is 755422056724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 344875482121 + 82774742436 = 587261^2 + 287706^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427650224557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 427650224557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427650224257) 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, 213825112278 + 213825112279.

It is an arithmetic number, because the mean of its divisors is an integer number (213825112279).

Almost surely, 2^427650224557 is an apocalyptic number.

It is an amenable number.

427650224557 is a deficient number, since it is larger than the sum of its proper divisors (1).

427650224557 is an equidigital number, since it uses as much as digits as its factorization.

427650224557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704000, while the sum is 49.

The spelling of 427650224557 in words is "four hundred twenty-seven billion, six hundred fifty million, two hundred twenty-four thousand, five hundred fifty-seven".