288321228269 has 2 divisors, whose sum is σ = 288321228270. Its totient is φ = 288321228268.

The previous prime is 288321228229. The next prime is 288321228277. The reversal of 288321228269 is 962822123882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221875855369 + 66445372900 = 471037^2 + 257770^2 .

It is a cyclic number.

It is not a de Polignac number, because 288321228269 - 2¹² = 288321224173 is a prime.

It is a super-2 number, since 2×288321228269² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 288321228269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288321228229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144160614134 + 144160614135.

It is an arithmetic number, because the mean of its divisors is an integer number (144160614135).

Almost surely, 2^288321228269 is an apocalyptic number.

It is an amenable number.

288321228269 is a deficient number, since it is larger than the sum of its proper divisors (1).

288321228269 is an equidigital number, since it uses as much as digits as its factorization.

288321228269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2654208, while the sum is 53.

The spelling of 288321228269 in words is "two hundred eighty-eight billion, three hundred twenty-one million, two hundred twenty-eight thousand, two hundred sixty-nine".