18322871053 has 2 divisors, whose sum is σ = 18322871054. Its totient is φ = 18322871052.

The previous prime is 18322871023. The next prime is 18322871057. The reversal of 18322871053 is 35017822381.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18322871044 + 9 = 135362^2 + 3^2 .

It is a cyclic number.

It is not a de Polignac number, because 18322871053 - 2²⁵ = 18289316621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18322870997 and 18322871015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18322871057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9161435526 + 9161435527.

It is an arithmetic number, because the mean of its divisors is an integer number (9161435527).

Almost surely, 2^18322871053 is an apocalyptic number.

It is an amenable number.

18322871053 is a deficient number, since it is larger than the sum of its proper divisors (1).

18322871053 is an equidigital number, since it uses as much as digits as its factorization.

18322871053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 18322871053 in words is "eighteen billion, three hundred twenty-two million, eight hundred seventy-one thousand, fifty-three".