217068835234 has 16 divisors (see below), whose sum is σ = 326468574720. Its totient is φ = 108246235680.

The previous prime is 217068835219. The next prime is 217068835237. The reversal of 217068835234 is 432538860712.

It is not an unprimeable number, because it can be changed into a prime (217068835237) 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 7 ways as a sum of consecutive naturals, for example, 1644574 + ... + 1771654.

It is an arithmetic number, because the mean of its divisors is an integer number (20404285920).

Almost surely, 2^217068835234 is an apocalyptic number.

217068835234 is a deficient number, since it is larger than the sum of its proper divisors (109399739486).

217068835234 is a wasteful number, since it uses less digits than its factorization.

217068835234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129345.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 217068835234 in words is "two hundred seventeen billion, sixty-eight million, eight hundred thirty-five thousand, two hundred thirty-four".