228085789819 has 2 divisors, whose sum is σ = 228085789820. Its totient is φ = 228085789818.

The previous prime is 228085789817. The next prime is 228085789831. The reversal of 228085789819 is 918987580822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228085789819 - 2¹ = 228085789817 is a prime.

It is a super-2 number, since 2×228085789819² (a number of 24 digits) contains 22 as substring.

Together with 228085789817, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (228085789817) 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 as a sum of consecutive naturals, namely, 114042894909 + 114042894910.

It is an arithmetic number, because the mean of its divisors is an integer number (114042894910).

Almost surely, 2^228085789819 is an apocalyptic number.

228085789819 is a deficient number, since it is larger than the sum of its proper divisors (1).

228085789819 is an equidigital number, since it uses as much as digits as its factorization.

228085789819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46448640, while the sum is 67.

The spelling of 228085789819 in words is "two hundred twenty-eight billion, eighty-five million, seven hundred eighty-nine thousand, eight hundred nineteen".