18467800073 has 2 divisors, whose sum is σ = 18467800074. Its totient is φ = 18467800072.

The previous prime is 18467800033. The next prime is 18467800103. The reversal of 18467800073 is 37000876481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16325683984 + 2142116089 = 127772^2 + 46283^2 .

It is a cyclic number.

It is not a de Polignac number, because 18467800073 - 2¹⁸ = 18467537929 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18467799997 and 18467800033.

It is not a weakly prime, because it can be changed into another prime (18467800033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9233900036 + 9233900037.

It is an arithmetic number, because the mean of its divisors is an integer number (9233900037).

Almost surely, 2^18467800073 is an apocalyptic number.

It is an amenable number.

18467800073 is a deficient number, since it is larger than the sum of its proper divisors (1).

18467800073 is an equidigital number, since it uses as much as digits as its factorization.

18467800073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 18467800073 in words is "eighteen billion, four hundred sixty-seven million, eight hundred thousand, seventy-three".