228648938265 has 64 divisors (see below), whose sum is σ = 469525144320. Its totient is φ = 104338897920.

The previous prime is 228648938249. The next prime is 228648938281. The reversal of 228648938265 is 562839846822.

228648938265 is a `hidden beast` number, since 2 + 286 + 4 + 8 + 93 + 8 + 265 = 666.

It is an interprime number because it is at equal distance from previous prime (228648938249) and next prime (228648938281).

It is not a de Polignac number, because 228648938265 - 2⁴ = 228648938249 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4503354 + ... + 4553843.

It is an arithmetic number, because the mean of its divisors is an integer number (7336330380).

Almost surely, 2^228648938265 is an apocalyptic number.

It is an amenable number.

228648938265 is an abundant number, since it is smaller than the sum of its proper divisors (240876206055).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228648938265 is a wasteful number, since it uses less digits than its factorization.

228648938265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9057239 (or 9057233 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 63.

The spelling of 228648938265 in words is "two hundred twenty-eight billion, six hundred forty-eight million, nine hundred thirty-eight thousand, two hundred sixty-five".