228730928625 has 80 divisors (see below), whose sum is σ = 432429528960. Its totient is φ = 120271284000.

The previous prime is 228730928623. The next prime is 228730928633. The reversal of 228730928625 is 526829037822.

228730928625 is a `hidden beast` number, since 2 + 2 + 8 + 7 + 3 + 0 + 9 + 2 + 8 + 625 = 666.

It is not a de Polignac number, because 228730928625 - 2¹ = 228730928623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228730928623) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 559786 + ... + 877964.

It is an arithmetic number, because the mean of its divisors is an integer number (5405369112).

Almost surely, 2^228730928625 is an apocalyptic number.

228730928625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228730928625 is a deficient number, since it is larger than the sum of its proper divisors (203698600335).

228730928625 is an equidigital number, since it uses as much as digits as its factorization.

228730928625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318277 (or 318258 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 228730928625 in words is "two hundred twenty-eight billion, seven hundred thirty million, nine hundred twenty-eight thousand, six hundred twenty-five".