18034020773 has 2 divisors, whose sum is σ = 18034020774. Its totient is φ = 18034020772.

The previous prime is 18034020737. The next prime is 18034020827. The reversal of 18034020773 is 37702043081.

Together with previous prime (18034020737) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17365177729 + 668843044 = 131777^2 + 25862^2 .

It is a cyclic number.

It is not a de Polignac number, because 18034020773 - 2⁸ = 18034020517 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 (18034023773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9017010386 + 9017010387.

It is an arithmetic number, because the mean of its divisors is an integer number (9017010387).

Almost surely, 2^18034020773 is an apocalyptic number.

It is an amenable number.

18034020773 is a deficient number, since it is larger than the sum of its proper divisors (1).

18034020773 is an equidigital number, since it uses as much as digits as its factorization.

18034020773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 18034020773 in words is "eighteen billion, thirty-four million, twenty thousand, seven hundred seventy-three".