18202630793 has 2 divisors, whose sum is σ = 18202630794. Its totient is φ = 18202630792.

The previous prime is 18202630769. The next prime is 18202630867. The reversal of 18202630793 is 39703620281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9341609104 + 8861021689 = 96652^2 + 94133^2 .

It is a cyclic number.

It is not a de Polignac number, because 18202630793 - 2⁶ = 18202630729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18202630793.

It is not a weakly prime, because it can be changed into another prime (18202630753) 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, 9101315396 + 9101315397.

It is an arithmetic number, because the mean of its divisors is an integer number (9101315397).

Almost surely, 2^18202630793 is an apocalyptic number.

It is an amenable number.

18202630793 is a deficient number, since it is larger than the sum of its proper divisors (1).

18202630793 is an equidigital number, since it uses as much as digits as its factorization.

18202630793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 18202630793 in words is "eighteen billion, two hundred two million, six hundred thirty thousand, seven hundred ninety-three".