211536368193 has 4 divisors (see below), whose sum is σ = 282048490928. Its totient is φ = 141024245460.

The previous prime is 211536368149. The next prime is 211536368201. The reversal of 211536368193 is 391863635112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 211536368193 - 2¹⁰ = 211536367169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211536360193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35256061363 + ... + 35256061368.

It is an arithmetic number, because the mean of its divisors is an integer number (70512122732).

Almost surely, 2^211536368193 is an apocalyptic number.

It is an amenable number.

211536368193 is a deficient number, since it is larger than the sum of its proper divisors (70512122735).

211536368193 is an equidigital number, since it uses as much as digits as its factorization.

211536368193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70512122734.

The product of its digits is 699840, while the sum is 48.

The spelling of 211536368193 in words is "two hundred eleven billion, five hundred thirty-six million, three hundred sixty-eight thousand, one hundred ninety-three".