228064568309 has 4 divisors (see below), whose sum is σ = 228093729216. Its totient is φ = 228035407404.

The previous prime is 228064568269. The next prime is 228064568323. The reversal of 228064568309 is 903865460822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228064568309 - 2¹² = 228064564213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228064528309) 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, 14568719 + ... + 14584364.

It is an arithmetic number, because the mean of its divisors is an integer number (57023432304).

Almost surely, 2^228064568309 is an apocalyptic number.

It is an amenable number.

228064568309 is a deficient number, since it is larger than the sum of its proper divisors (29160907).

228064568309 is an equidigital number, since it uses as much as digits as its factorization.

228064568309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29160906.

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 228064568309 in words is "two hundred twenty-eight billion, sixty-four million, five hundred sixty-eight thousand, three hundred nine".