211058677217 has 4 divisors (see below), whose sum is σ = 211061289216. Its totient is φ = 211056065220.

The previous prime is 211058677199. The next prime is 211058677223. The reversal of 211058677217 is 712776850112.

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 a cyclic number.

It is not a de Polignac number, because 211058677217 - 2⁶ = 211058677153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211058677517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180793 + ... + 1347734.

It is an arithmetic number, because the mean of its divisors is an integer number (52765322304).

Almost surely, 2^211058677217 is an apocalyptic number.

It is an amenable number.

211058677217 is a deficient number, since it is larger than the sum of its proper divisors (2611999).

211058677217 is an equidigital number, since it uses as much as digits as its factorization.

211058677217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611998.

The product of its (nonzero) digits is 329280, while the sum is 47.

The spelling of 211058677217 in words is "two hundred eleven billion, fifty-eight million, six hundred seventy-seven thousand, two hundred seventeen".