228459608809 has 2 divisors, whose sum is σ = 228459608810. Its totient is φ = 228459608808.

The previous prime is 228459608807. The next prime is 228459609023. The reversal of 228459608809 is 908806954822.

228459608809 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., 129004525584 + 99455083225 = 359172^2 + 315365^2 .

It is a cyclic number.

It is not a de Polignac number, because 228459608809 - 2¹ = 228459608807 is a prime.

It is a super-2 number, since 2×228459608809² (a number of 24 digits) contains 22 as substring.

Together with 228459608807, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (228459608807) 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, 114229804404 + 114229804405.

It is an arithmetic number, because the mean of its divisors is an integer number (114229804405).

Almost surely, 2^228459608809 is an apocalyptic number.

It is an amenable number.

228459608809 is a deficient number, since it is larger than the sum of its proper divisors (1).

228459608809 is an equidigital number, since it uses as much as digits as its factorization.

228459608809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19906560, while the sum is 61.

The spelling of 228459608809 in words is "two hundred twenty-eight billion, four hundred fifty-nine million, six hundred eight thousand, eight hundred nine".