228446768500 has 24 divisors (see below), whose sum is σ = 498927743496. Its totient is φ = 91378707200.

The previous prime is 228446768491. The next prime is 228446768503. The reversal of 228446768500 is 5867644822.

228446768500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 578017764 + 227868750736 = 24042^2 + 477356^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228446768503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228446269 + ... + 228447268.

It is an arithmetic number, because the mean of its divisors is an integer number (20788655979).

Almost surely, 2^228446768500 is an apocalyptic number.

228446768500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228446768500 is an abundant number, since it is smaller than the sum of its proper divisors (270480974996).

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

228446768500 is a wasteful number, since it uses less digits than its factorization.

228446768500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456893556 (or 456893544 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 52.

The spelling of 228446768500 in words is "two hundred twenty-eight billion, four hundred forty-six million, seven hundred sixty-eight thousand, five hundred".