228463664648 has 12 divisors (see below), whose sum is σ = 428371906095. Its totient is φ = 114231156360.

The previous prime is 228463664633. The next prime is 228463664701. The reversal of 228463664648 is 846466364822.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 114231832324 + 114231832324 = 337982^2 + 337982^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=337982.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1267433 + ... + 1436423.

Almost surely, 2^228463664648 is an apocalyptic number.

It is an amenable number.

228463664648 is a deficient number, since it is larger than the sum of its proper divisors (199908241447).

228463664648 is an frugal number, since it uses more digits than its factorization.

228463664648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337988 (or 168993 counting only the distinct ones).

The product of its digits is 63700992, while the sum is 59.

The spelling of 228463664648 in words is "two hundred twenty-eight billion, four hundred sixty-three million, six hundred sixty-four thousand, six hundred forty-eight".