242775750047177 has 2 divisors, whose sum is σ = 242775750047178. Its totient is φ = 242775750047176.

The previous prime is 242775750047167. The next prime is 242775750047191. The reversal of 242775750047177 is 771740057577242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137384911919161 + 105390838128016 = 11721131^2 + 10266004^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242775750047177 is a prime.

It is not a weakly prime, because it can be changed into another prime (242775750047167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121387875023588 + 121387875023589.

It is an arithmetic number, because the mean of its divisors is an integer number (121387875023589).

Almost surely, 2^{242775750047177} is an apocalyptic number.

It is an amenable number.

242775750047177 is a deficient number, since it is larger than the sum of its proper divisors (1).

242775750047177 is an equidigital number, since it uses as much as digits as its factorization.

242775750047177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188238400, while the sum is 65.

The spelling of 242775750047177 in words is "two hundred forty-two trillion, seven hundred seventy-five billion, seven hundred fifty million, forty-seven thousand, one hundred seventy-seven".