250042340440169 has 2 divisors, whose sum is σ = 250042340440170. Its totient is φ = 250042340440168.

The previous prime is 250042340440091. The next prime is 250042340440177. The reversal of 250042340440169 is 961044043240052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175784825841769 + 74257514598400 = 13258387^2 + 8617280^2 .

It is a cyclic number.

It is not a de Polignac number, because 250042340440169 - 2³⁶ = 249973620963433 is a prime.

It is a super-3 number, since 3×250042340440169³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (250042340440969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125021170220084 + 125021170220085.

It is an arithmetic number, because the mean of its divisors is an integer number (125021170220085).

Almost surely, 2^{250042340440169} is an apocalyptic number.

It is an amenable number.

250042340440169 is a deficient number, since it is larger than the sum of its proper divisors (1).

250042340440169 is an equidigital number, since it uses as much as digits as its factorization.

250042340440169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 250042340440169 in words is "two hundred fifty trillion, forty-two billion, three hundred forty million, four hundred forty thousand, one hundred sixty-nine".