50018346173 has 2 divisors, whose sum is σ = 50018346174. Its totient is φ = 50018346172.

The previous prime is 50018346151. The next prime is 50018346181. The reversal of 50018346173 is 37164381005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49627809529 + 390536644 = 222773^2 + 19762^2 .

It is a cyclic number.

It is not a de Polignac number, because 50018346173 - 2⁶ = 50018346109 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 (50018346673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25009173086 + 25009173087.

It is an arithmetic number, because the mean of its divisors is an integer number (25009173087).

Almost surely, 2^50018346173 is an apocalyptic number.

It is an amenable number.

50018346173 is a deficient number, since it is larger than the sum of its proper divisors (1).

50018346173 is an equidigital number, since it uses as much as digits as its factorization.

50018346173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 50018346173 in words is "fifty billion, eighteen million, three hundred forty-six thousand, one hundred seventy-three".