242366504210189 has 2 divisors, whose sum is σ = 242366504210190. Its totient is φ = 242366504210188.

The previous prime is 242366504210183. The next prime is 242366504210227. The reversal of 242366504210189 is 981012405663242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231857204552164 + 10509299658025 = 15226858^2 + 3241805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242366504210189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242366504210189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242366504210183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121183252105094 + 121183252105095.

It is an arithmetic number, because the mean of its divisors is an integer number (121183252105095).

Almost surely, 2^{242366504210189} is an apocalyptic number.

It is an amenable number.

242366504210189 is a deficient number, since it is larger than the sum of its proper divisors (1).

242366504210189 is an equidigital number, since it uses as much as digits as its factorization.

242366504210189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 242366504210189 in words is "two hundred forty-two trillion, three hundred sixty-six billion, five hundred four million, two hundred ten thousand, one hundred eighty-nine".