242702598557 has 2 divisors, whose sum is σ = 242702598558. Its totient is φ = 242702598556.

The previous prime is 242702598529. The next prime is 242702598587. The reversal of 242702598557 is 755895207242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237681600676 + 5020997881 = 487526^2 + 70859^2 .

It is a cyclic number.

It is not a de Polignac number, because 242702598557 - 2⁸ = 242702598301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242702598517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121351299278 + 121351299279.

It is an arithmetic number, because the mean of its divisors is an integer number (121351299279).

Almost surely, 2^242702598557 is an apocalyptic number.

It is an amenable number.

242702598557 is a deficient number, since it is larger than the sum of its proper divisors (1).

242702598557 is an equidigital number, since it uses as much as digits as its factorization.

242702598557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112000, while the sum is 56.

The spelling of 242702598557 in words is "two hundred forty-two billion, seven hundred two million, five hundred ninety-eight thousand, five hundred fifty-seven".