213799184393 has 2 divisors, whose sum is σ = 213799184394. Its totient is φ = 213799184392.

The previous prime is 213799184381. The next prime is 213799184419. The reversal of 213799184393 is 393481997312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212929642249 + 869542144 = 461443^2 + 29488^2 .

It is a cyclic number.

It is not a de Polignac number, because 213799184393 - 2¹² = 213799180297 is a prime.

It is a super-2 number, since 2×213799184393² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213799184323) 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, 106899592196 + 106899592197.

It is an arithmetic number, because the mean of its divisors is an integer number (106899592197).

Almost surely, 2^213799184393 is an apocalyptic number.

It is an amenable number.

213799184393 is a deficient number, since it is larger than the sum of its proper divisors (1).

213799184393 is an equidigital number, since it uses as much as digits as its factorization.

213799184393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8817984, while the sum is 59.

The spelling of 213799184393 in words is "two hundred thirteen billion, seven hundred ninety-nine million, one hundred eighty-four thousand, three hundred ninety-three".