217272928223 has 8 divisors (see below), whose sum is σ = 234367945728. Its totient is φ = 200232441504.

The previous prime is 217272928207. The next prime is 217272928237. The reversal of 217272928223 is 322829272712.

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 217272928223 - 2⁴ = 217272928207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217272928283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13624415 + ... + 13640352.

It is an arithmetic number, because the mean of its divisors is an integer number (29295993216).

Almost surely, 2^217272928223 is an apocalyptic number.

217272928223 is a deficient number, since it is larger than the sum of its proper divisors (17095017505).

217272928223 is a wasteful number, since it uses less digits than its factorization.

217272928223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27265393.

The product of its digits is 677376, while the sum is 47.

The spelling of 217272928223 in words is "two hundred seventeen billion, two hundred seventy-two million, nine hundred twenty-eight thousand, two hundred twenty-three".