228286663488 has 672 divisors, whose sum is σ = 806941175040. Its totient is φ = 60914073600.

The previous prime is 228286663487. The next prime is 228286663511. The reversal of 228286663488 is 884366682822.

It is a super-2 number, since 2×228286663488² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228286663487) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 89487813 + ... + 89490363.

It is an arithmetic number, because the mean of its divisors is an integer number (1200805320).

Almost surely, 2^228286663488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228286663488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403470587520).

228286663488 is an abundant number, since it is smaller than the sum of its proper divisors (578654511552).

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

228286663488 is a wasteful number, since it uses less digits than its factorization.

228286663488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2655 (or 2642 counting only the distinct ones).

The product of its digits is 84934656, while the sum is 63.

The spelling of 228286663488 in words is "two hundred twenty-eight billion, two hundred eighty-six million, six hundred sixty-three thousand, four hundred eighty-eight".