228069476321 has 4 divisors (see below), whose sum is σ = 228153544452. Its totient is φ = 227985408192.

The previous prime is 228069476251. The next prime is 228069476413. The reversal of 228069476321 is 123674960822.

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 130765408225 + 97304068096 = 361615^2 + 311936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228069476321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228069476321.

It is not an unprimeable number, because it can be changed into a prime (228069416321) 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, 42029996 + ... + 42035421.

It is an arithmetic number, because the mean of its divisors is an integer number (57038386113).

Almost surely, 2^228069476321 is an apocalyptic number.

It is an amenable number.

228069476321 is a deficient number, since it is larger than the sum of its proper divisors (84068131).

228069476321 is an equidigital number, since it uses as much as digits as its factorization.

228069476321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84068130.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 228069476321 in words is "two hundred twenty-eight billion, sixty-nine million, four hundred seventy-six thousand, three hundred twenty-one".