212832668388717 has 24 divisors (see below), whose sum is σ = 331171194210584. Its totient is φ = 130935119428224.

The previous prime is 212832668388689. The next prime is 212832668388721. The reversal of 212832668388717 is 717883866238212.

212832668388717 is a `hidden beast` number, since 2 + 1 + 283 + 266 + 8 + 3 + 8 + 87 + 1 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 130384288936836 + 82448379451881 = 11418594^2 + 9080109^2 .

It is not a de Polignac number, because 212832668388717 - 2¹⁹ = 212832667864429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212832668388727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269258878 + ... + 270048159.

Almost surely, 2^{212832668388717} is an apocalyptic number.

It is an amenable number.

212832668388717 is a deficient number, since it is larger than the sum of its proper divisors (118338525821867).

212832668388717 is a wasteful number, since it uses less digits than its factorization.

212832668388717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539310429 (or 539310426 counting only the distinct ones).

The product of its digits is 520224768, while the sum is 72.

The spelling of 212832668388717 in words is "two hundred twelve trillion, eight hundred thirty-two billion, six hundred sixty-eight million, three hundred eighty-eight thousand, seven hundred seventeen".