50168269661 has 2 divisors, whose sum is σ = 50168269662. Its totient is φ = 50168269660.

The previous prime is 50168269643. The next prime is 50168269667. The reversal of 50168269661 is 16696286105.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34419525625 + 15748744036 = 185525^2 + 125494^2 .

It is a cyclic number.

It is not a de Polignac number, because 50168269661 - 2⁶ = 50168269597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50168269667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25084134830 + 25084134831.

It is an arithmetic number, because the mean of its divisors is an integer number (25084134831).

Almost surely, 2^50168269661 is an apocalyptic number.

It is an amenable number.

50168269661 is a deficient number, since it is larger than the sum of its proper divisors (1).

50168269661 is an equidigital number, since it uses as much as digits as its factorization.

50168269661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 50168269661 in words is "fifty billion, one hundred sixty-eight million, two hundred sixty-nine thousand, six hundred sixty-one".