228365269969 has 4 divisors (see below), whose sum is σ = 229253851044. Its totient is φ = 227476688896.

The previous prime is 228365269939. The next prime is 228365269981. The reversal of 228365269969 is 969962563822.

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

It can be written as a sum of positive squares in 2 ways, for example, as 102845283025 + 125519986944 = 320695^2 + 354288^2 .

It is a cyclic number.

It is not a de Polignac number, because 228365269969 - 2¹⁵ = 228365237201 is a prime.

It is a super-2 number, since 2×228365269969² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228365269939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444290152 + ... + 444290665.

It is an arithmetic number, because the mean of its divisors is an integer number (57313462761).

Almost surely, 2^228365269969 is an apocalyptic number.

It is an amenable number.

228365269969 is a deficient number, since it is larger than the sum of its proper divisors (888581075).

228365269969 is an equidigital number, since it uses as much as digits as its factorization.

228365269969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888581074.

The product of its digits is 151165440, while the sum is 67.

The spelling of 228365269969 in words is "two hundred twenty-eight billion, three hundred sixty-five million, two hundred sixty-nine thousand, nine hundred sixty-nine".