228748068992 has 96 divisors (see below), whose sum is σ = 473833548900. Its totient is φ = 109868236800.

The previous prime is 228748068863. The next prime is 228748069013. The reversal of 228748068992 is 299860847822.

It can be written as a sum of positive squares in 6 ways, for example, as 189280684096 + 39467384896 = 435064^2 + 198664^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215596142 + ... + 215597202.

Almost surely, 2^228748068992 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 228748068992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236916774450).

228748068992 is an abundant number, since it is smaller than the sum of its proper divisors (245085479908).

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

228748068992 is an equidigital number, since it uses as much as digits as its factorization.

228748068992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 65.

The spelling of 228748068992 in words is "two hundred twenty-eight billion, seven hundred forty-eight million, sixty-eight thousand, nine hundred ninety-two".