228818961773 has 2 divisors, whose sum is σ = 228818961774. Its totient is φ = 228818961772.

The previous prime is 228818961751. The next prime is 228818961817. The reversal of 228818961773 is 377169818822.

228818961773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165041500009 + 63777461764 = 406253^2 + 252542^2 .

It is a cyclic number.

It is not a de Polignac number, because 228818961773 - 2¹⁰ = 228818960749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228818961703) 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, 114409480886 + 114409480887.

It is an arithmetic number, because the mean of its divisors is an integer number (114409480887).

Almost surely, 2^228818961773 is an apocalyptic number.

It is an amenable number.

228818961773 is a deficient number, since it is larger than the sum of its proper divisors (1).

228818961773 is an equidigital number, since it uses as much as digits as its factorization.

228818961773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16257024, while the sum is 62.

The spelling of 228818961773 in words is "two hundred twenty-eight billion, eight hundred eighteen million, nine hundred sixty-one thousand, seven hundred seventy-three".