18350366850037 has 2 divisors, whose sum is σ = 18350366850038. Its totient is φ = 18350366850036.

The previous prime is 18350366850019. The next prime is 18350366850131. The reversal of 18350366850037 is 73005866305381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18225949102596 + 124417747441 = 4269186^2 + 352729^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18350366850037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18350366850037.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18350366850637) 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, 9175183425018 + 9175183425019.

It is an arithmetic number, because the mean of its divisors is an integer number (9175183425019).

Almost surely, 2^{18350366850037} is an apocalyptic number.

It is an amenable number.

18350366850037 is a deficient number, since it is larger than the sum of its proper divisors (1).

18350366850037 is an equidigital number, since it uses as much as digits as its factorization.

18350366850037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 18350366850037 in words is "eighteen trillion, three hundred fifty billion, three hundred sixty-six million, eight hundred fifty thousand, thirty-seven".