228513091568 has 10 divisors (see below), whose sum is σ = 442744114944. Its totient is φ = 114256545776.

The previous prime is 228513091567. The next prime is 228513091589. The reversal of 228513091568 is 865190315822.

228513091568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228513091567) 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 as a sum of consecutive naturals, namely, 7141034096 + ... + 7141034127.

Almost surely, 2^228513091568 is an apocalyptic number.

It is an amenable number.

228513091568 is a deficient number, since it is larger than the sum of its proper divisors (214231023376).

228513091568 is a wasteful number, since it uses less digits than its factorization.

228513091568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14282068231 (or 14282068225 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 228513091568 in words is "two hundred twenty-eight billion, five hundred thirteen million, ninety-one thousand, five hundred sixty-eight".