18000075090073 has 2 divisors, whose sum is σ = 18000075090074. Its totient is φ = 18000075090072.

The previous prime is 18000075090061. The next prime is 18000075090079. The reversal of 18000075090073 is 37009057000081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11001341347929 + 6998733742144 = 3316827^2 + 2645512^2 .

It is a cyclic number.

It is not a de Polignac number, because 18000075090073 - 2¹⁷ = 18000074959001 is a prime.

It is not a weakly prime, because it can be changed into another prime (18000075090079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9000037545036 + 9000037545037.

It is an arithmetic number, because the mean of its divisors is an integer number (9000037545037).

Almost surely, 2^{18000075090073} is an apocalyptic number.

It is an amenable number.

18000075090073 is a deficient number, since it is larger than the sum of its proper divisors (1).

18000075090073 is an equidigital number, since it uses as much as digits as its factorization.

18000075090073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 18000075090073 in words is "eighteen trillion, seventy-five million, ninety thousand, seventy-three".