18303754813 has 2 divisors, whose sum is σ = 18303754814. Its totient is φ = 18303754812.

The previous prime is 18303754759. The next prime is 18303754853. The reversal of 18303754813 is 31845730381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14108213284 + 4195541529 = 118778^2 + 64773^2 .

It is a cyclic number.

It is not a de Polignac number, because 18303754813 - 2¹³ = 18303746621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18303754813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18303754853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9151877406 + 9151877407.

It is an arithmetic number, because the mean of its divisors is an integer number (9151877407).

Almost surely, 2^18303754813 is an apocalyptic number.

It is an amenable number.

18303754813 is a deficient number, since it is larger than the sum of its proper divisors (1).

18303754813 is an equidigital number, since it uses as much as digits as its factorization.

18303754813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 18303754813 in words is "eighteen billion, three hundred three million, seven hundred fifty-four thousand, eight hundred thirteen".