869666835133 has 2 divisors, whose sum is σ = 869666835134. Its totient is φ = 869666835132.

The previous prime is 869666835127. The next prime is 869666835151. The reversal of 869666835133 is 331538666968.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 755991992484 + 113674842649 = 869478^2 + 337157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-869666835133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (869666835173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434833417566 + 434833417567.

It is an arithmetic number, because the mean of its divisors is an integer number (434833417567).

Almost surely, 2^869666835133 is an apocalyptic number.

It is an amenable number.

869666835133 is a deficient number, since it is larger than the sum of its proper divisors (1).

869666835133 is an equidigital number, since it uses as much as digits as its factorization.

869666835133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100776960, while the sum is 64.

It can be divided in two parts, 869666835 and 133, that added together give a palindrome (869666968).

The spelling of 869666835133 in words is "eight hundred sixty-nine billion, six hundred sixty-six million, eight hundred thirty-five thousand, one hundred thirty-three".