50728690171 has 2 divisors, whose sum is σ = 50728690172. Its totient is φ = 50728690170.

The previous prime is 50728690127. The next prime is 50728690189. The reversal of 50728690171 is 17109682705.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50728690171 - 2⁹ = 50728689659 is a prime.

It is not a weakly prime, because it can be changed into another prime (50728691171) 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, 25364345085 + 25364345086.

It is an arithmetic number, because the mean of its divisors is an integer number (25364345086).

Almost surely, 2^50728690171 is an apocalyptic number.

50728690171 is a deficient number, since it is larger than the sum of its proper divisors (1).

50728690171 is an equidigital number, since it uses as much as digits as its factorization.

50728690171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 46.

The spelling of 50728690171 in words is "fifty billion, seven hundred twenty-eight million, six hundred ninety thousand, one hundred seventy-one".