213641162423809 has 16 divisors (see below), whose sum is σ = 220529952181440. Its totient is φ = 206862009520320.

The previous prime is 213641162423771. The next prime is 213641162423827. The reversal of 213641162423809 is 908324261146312.

It is a cyclic number.

It is not a de Polignac number, because 213641162423809 - 2¹¹ = 213641162421761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213641162423009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31805967 + ... + 37932859.

It is an arithmetic number, because the mean of its divisors is an integer number (13783122011340).

Almost surely, 2^{213641162423809} is an apocalyptic number.

It is an amenable number.

213641162423809 is a deficient number, since it is larger than the sum of its proper divisors (6888789757631).

213641162423809 is an equidigital number, since it uses as much as digits as its factorization.

213641162423809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6135840.

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 213641162423809 in words is "two hundred thirteen trillion, six hundred forty-one billion, one hundred sixty-two million, four hundred twenty-three thousand, eight hundred nine".