228984756669 has 6 divisors (see below), whose sum is σ = 330755759646. Its totient is φ = 152656504440.

The previous prime is 228984756619. The next prime is 228984756683. The reversal of 228984756669 is 966657489822.

It is a happy number.

228984756669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 223015340025 + 5969416644 = 472245^2 + 77262^2 .

It is not a de Polignac number, because 228984756669 - 2¹² = 228984752573 is a prime.

It is a super-2 number, since 2×228984756669² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228984756597 and 228984756606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228984756619) 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 5 ways as a sum of consecutive naturals, for example, 12721375362 + ... + 12721375379.

It is an arithmetic number, because the mean of its divisors is an integer number (55125959941).

Almost surely, 2^228984756669 is an apocalyptic number.

It is an amenable number.

228984756669 is a deficient number, since it is larger than the sum of its proper divisors (101771002977).

228984756669 is a wasteful number, since it uses less digits than its factorization.

228984756669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25442750747 (or 25442750744 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 72.

The spelling of 228984756669 in words is "two hundred twenty-eight billion, nine hundred eighty-four million, seven hundred fifty-six thousand, six hundred sixty-nine".