213169636793 has 2 divisors, whose sum is σ = 213169636794. Its totient is φ = 213169636792.

The previous prime is 213169636781. The next prime is 213169636843. The reversal of 213169636793 is 397636961312.

213169636793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201823765504 + 11345871289 = 449248^2 + 106517^2 .

It is a cyclic number.

It is not a de Polignac number, because 213169636793 - 2¹⁴ = 213169620409 is a prime.

It is not a weakly prime, because it can be changed into another prime (213169636703) 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, 106584818396 + 106584818397.

It is an arithmetic number, because the mean of its divisors is an integer number (106584818397).

Almost surely, 2^213169636793 is an apocalyptic number.

It is an amenable number.

213169636793 is a deficient number, since it is larger than the sum of its proper divisors (1).

213169636793 is an equidigital number, since it uses as much as digits as its factorization.

213169636793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6613488, while the sum is 56.

The spelling of 213169636793 in words is "two hundred thirteen billion, one hundred sixty-nine million, six hundred thirty-six thousand, seven hundred ninety-three".