50717365991 has 2 divisors, whose sum is σ = 50717365992. Its totient is φ = 50717365990.

The previous prime is 50717365927. The next prime is 50717366003. The reversal of 50717365991 is 19956371705.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50717365991 - 2⁶ = 50717365927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50717365921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25358682995 + 25358682996.

It is an arithmetic number, because the mean of its divisors is an integer number (25358682996).

Almost surely, 2^50717365991 is an apocalyptic number.

50717365991 is a deficient number, since it is larger than the sum of its proper divisors (1).

50717365991 is an equidigital number, since it uses as much as digits as its factorization.

50717365991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1786050, while the sum is 53.

The spelling of 50717365991 in words is "fifty billion, seven hundred seventeen million, three hundred sixty-five thousand, nine hundred ninety-one".