216826770227 has 4 divisors (see below), whose sum is σ = 218281983600. Its totient is φ = 215371556856.

The previous prime is 216826770211. The next prime is 216826770229. The reversal of 216826770227 is 722077628612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216826770227 - 2⁴ = 216826770211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216826770229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727606463 + ... + 727606760.

It is an arithmetic number, because the mean of its divisors is an integer number (54570495900).

Almost surely, 2^216826770227 is an apocalyptic number.

216826770227 is a deficient number, since it is larger than the sum of its proper divisors (1455213373).

216826770227 is a wasteful number, since it uses less digits than its factorization.

216826770227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455213372.

The product of its (nonzero) digits is 1580544, while the sum is 50.

The spelling of 216826770227 in words is "two hundred sixteen billion, eight hundred twenty-six million, seven hundred seventy thousand, two hundred twenty-seven".