213686853389 has 2 divisors, whose sum is σ = 213686853390. Its totient is φ = 213686853388.

The previous prime is 213686853377. The next prime is 213686853397. The reversal of 213686853389 is 983358686312.

213686853389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126706097764 + 86980755625 = 355958^2 + 294925^2 .

It is a cyclic number.

It is not a de Polignac number, because 213686853389 - 2²⁴ = 213670076173 is a prime.

It is a super-2 number, since 2×213686853389² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213686853349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106843426694 + 106843426695.

It is an arithmetic number, because the mean of its divisors is an integer number (106843426695).

Almost surely, 2^213686853389 is an apocalyptic number.

It is an amenable number.

213686853389 is a deficient number, since it is larger than the sum of its proper divisors (1).

213686853389 is an equidigital number, since it uses as much as digits as its factorization.

213686853389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44789760, while the sum is 62.

The spelling of 213686853389 in words is "two hundred thirteen billion, six hundred eighty-six million, eight hundred fifty-three thousand, three hundred eighty-nine".