211374406017 has 12 divisors (see below), whose sum is σ = 310323810004. Its totient is φ = 138606167520.

The previous prime is 211374405961. The next prime is 211374406043. The reversal of 211374406017 is 710604473112.

211374406017 is a `hidden beast` number, since 2 + 1 + 1 + 3 + 7 + 4 + 40 + 601 + 7 = 666.

211374406017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 70598615616 + 140775790401 = 265704^2 + 375201^2 .

It is not a de Polignac number, because 211374406017 - 2²⁰ = 211373357441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211374406417) 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 in 11 ways as a sum of consecutive naturals, for example, 192508018 + ... + 192509115.

Almost surely, 2^211374406017 is an apocalyptic number.

It is an amenable number.

211374406017 is a deficient number, since it is larger than the sum of its proper divisors (98949403987).

211374406017 is a wasteful number, since it uses less digits than its factorization.

211374406017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385017200 (or 385017197 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

Adding to 211374406017 its reverse (710604473112), we get a palindrome (921978879129).

The spelling of 211374406017 in words is "two hundred eleven billion, three hundred seventy-four million, four hundred six thousand, seventeen".