18359884133 has 2 divisors, whose sum is σ = 18359884134. Its totient is φ = 18359884132.

The previous prime is 18359884117. The next prime is 18359884139. The reversal of 18359884133 is 33148895381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18162144289 + 197739844 = 134767^2 + 14062^2 .

It is a cyclic number.

It is not a de Polignac number, because 18359884133 - 2⁴ = 18359884117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18359884139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9179942066 + 9179942067.

It is an arithmetic number, because the mean of its divisors is an integer number (9179942067).

Almost surely, 2^18359884133 is an apocalyptic number.

It is an amenable number.

18359884133 is a deficient number, since it is larger than the sum of its proper divisors (1).

18359884133 is an equidigital number, since it uses as much as digits as its factorization.

18359884133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 53.

The spelling of 18359884133 in words is "eighteen billion, three hundred fifty-nine million, eight hundred eighty-four thousand, one hundred thirty-three".