217409282913 has 8 divisors (see below), whose sum is σ = 289918875168. Its totient is φ = 144919606304.

The previous prime is 217409282897. The next prime is 217409282921. The reversal of 217409282913 is 319282904712.

217409282913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 217409282913 - 2⁴ = 217409282897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (217409282953) 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 7 ways as a sum of consecutive naturals, for example, 4953420 + ... + 4997117.

It is an arithmetic number, because the mean of its divisors is an integer number (36239859396).

Almost surely, 2^217409282913 is an apocalyptic number.

It is an amenable number.

217409282913 is a deficient number, since it is larger than the sum of its proper divisors (72509592255).

217409282913 is an equidigital number, since it uses as much as digits as its factorization.

217409282913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9957823.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 217409282913 in words is "two hundred seventeen billion, four hundred nine million, two hundred eighty-two thousand, nine hundred thirteen".