213836846869 has 2 divisors, whose sum is σ = 213836846870. Its totient is φ = 213836846868.

The previous prime is 213836846863. The next prime is 213836846903. The reversal of 213836846869 is 968648638312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195425884900 + 18410961969 = 442070^2 + 135687^2 .

It is a cyclic number.

It is not a de Polignac number, because 213836846869 - 2¹¹ = 213836844821 is a prime.

It is a super-3 number, since 3×213836846869³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 213836846869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213836846863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106918423434 + 106918423435.

It is an arithmetic number, because the mean of its divisors is an integer number (106918423435).

Almost surely, 2^213836846869 is an apocalyptic number.

It is an amenable number.

213836846869 is a deficient number, since it is larger than the sum of its proper divisors (1).

213836846869 is an equidigital number, since it uses as much as digits as its factorization.

213836846869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71663616, while the sum is 64.

The spelling of 213836846869 in words is "two hundred thirteen billion, eight hundred thirty-six million, eight hundred forty-six thousand, eight hundred sixty-nine".