211449576913 has 2 divisors, whose sum is σ = 211449576914. Its totient is φ = 211449576912.

The previous prime is 211449576893. The next prime is 211449577013. The reversal of 211449576913 is 319675944112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204079869504 + 7369707409 = 451752^2 + 85847^2 .

It is a cyclic number.

It is not a de Polignac number, because 211449576913 - 2³⁷ = 74010623441 is a prime.

It is not a weakly prime, because it can be changed into another prime (211449571913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105724788456 + 105724788457.

It is an arithmetic number, because the mean of its divisors is an integer number (105724788457).

Almost surely, 2^211449576913 is an apocalyptic number.

It is an amenable number.

211449576913 is a deficient number, since it is larger than the sum of its proper divisors (1).

211449576913 is an equidigital number, since it uses as much as digits as its factorization.

211449576913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The spelling of 211449576913 in words is "two hundred eleven billion, four hundred forty-nine million, five hundred seventy-six thousand, nine hundred thirteen".