217433980733 has 2 divisors, whose sum is σ = 217433980734. Its totient is φ = 217433980732.

The previous prime is 217433980679. The next prime is 217433980739. The reversal of 217433980733 is 337089334712.

217433980733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196477654564 + 20956326169 = 443258^2 + 144763^2 .

It is a cyclic number.

It is not a de Polignac number, because 217433980733 - 2¹⁰ = 217433979709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (217433980739) 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 as a sum of consecutive naturals, namely, 108716990366 + 108716990367.

It is an arithmetic number, because the mean of its divisors is an integer number (108716990367).

Almost surely, 2^217433980733 is an apocalyptic number.

It is an amenable number.

217433980733 is a deficient number, since it is larger than the sum of its proper divisors (1).

217433980733 is an equidigital number, since it uses as much as digits as its factorization.

217433980733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 50.

The spelling of 217433980733 in words is "two hundred seventeen billion, four hundred thirty-three million, nine hundred eighty thousand, seven hundred thirty-three".