2168238593 has 2 divisors, whose sum is σ = 2168238594. Its totient is φ = 2168238592.

The previous prime is 2168238587. The next prime is 2168238601. The reversal of 2168238593 is 3958328612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2167181809 + 1056784 = 46553^2 + 1028^2 .

It is a cyclic number.

It is not a de Polignac number, because 2168238593 - 2⁸ = 2168238337 is a prime.

It is not a weakly prime, because it can be changed into another prime (2168232593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1084119296 + 1084119297.

It is an arithmetic number, because the mean of its divisors is an integer number (1084119297).

Almost surely, 2^2168238593 is an apocalyptic number.

It is an amenable number.

2168238593 is a deficient number, since it is larger than the sum of its proper divisors (1).

2168238593 is an equidigital number, since it uses as much as digits as its factorization.

2168238593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The square root of 2168238593 is about 46564.3489485250. The cubic root of 2168238593 is about 1294.3022021434.

The spelling of 2168238593 in words is "two billion, one hundred sixty-eight million, two hundred thirty-eight thousand, five hundred ninety-three".