242770761213217 has 2 divisors, whose sum is σ = 242770761213218. Its totient is φ = 242770761213216.

The previous prime is 242770761213187. The next prime is 242770761213301. The reversal of 242770761213217 is 712312167077242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225121486394401 + 17649274818816 = 15004049^2 + 4201104^2 .

It is a cyclic number.

It is not a de Polignac number, because 242770761213217 - 2¹⁵ = 242770761180449 is a prime.

It is not a weakly prime, because it can be changed into another prime (242770761213017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121385380606608 + 121385380606609.

It is an arithmetic number, because the mean of its divisors is an integer number (121385380606609).

Almost surely, 2^{242770761213217} is an apocalyptic number.

It is an amenable number.

242770761213217 is a deficient number, since it is larger than the sum of its proper divisors (1).

242770761213217 is an equidigital number, since it uses as much as digits as its factorization.

242770761213217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2765952, while the sum is 52.

The spelling of 242770761213217 in words is "two hundred forty-two trillion, seven hundred seventy billion, seven hundred sixty-one million, two hundred thirteen thousand, two hundred seventeen".