242776662506459 has 2 divisors, whose sum is σ = 242776662506460. Its totient is φ = 242776662506458.

The previous prime is 242776662506383. The next prime is 242776662506507. The reversal of 242776662506459 is 954605266677242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242776662506459 - 2²⁴ = 242776645729243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242776662506392 and 242776662506401.

It is not a weakly prime, because it can be changed into another prime (242776662500459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121388331253229 + 121388331253230.

It is an arithmetic number, because the mean of its divisors is an integer number (121388331253230).

Almost surely, 2^{242776662506459} is an apocalyptic number.

242776662506459 is a deficient number, since it is larger than the sum of its proper divisors (1).

242776662506459 is an equidigital number, since it uses as much as digits as its factorization.

242776662506459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1828915200, while the sum is 71.

The spelling of 242776662506459 in words is "two hundred forty-two trillion, seven hundred seventy-six billion, six hundred sixty-two million, five hundred six thousand, four hundred fifty-nine".