28453227268 has 12 divisors (see below), whose sum is σ = 49794579100. Its totient is φ = 14226204672.

The previous prime is 28453227247. The next prime is 28453227269. The reversal of 28453227268 is 86272235482.

It can be written as a sum of positive squares in 2 ways, for example, as 10305904324 + 18147322944 = 101518^2 + 134712^2 .

It is a super-2 number, since 2×28453227268² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28453227269) 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 3 ways as a sum of consecutive naturals, for example, 97780 + ... + 257812.

Almost surely, 2^28453227268 is an apocalyptic number.

It is an amenable number.

28453227268 is a deficient number, since it is larger than the sum of its proper divisors (21341351832).

28453227268 is a wasteful number, since it uses less digits than its factorization.

28453227268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204486 (or 204484 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 49.

The spelling of 28453227268 in words is "twenty-eight billion, four hundred fifty-three million, two hundred twenty-seven thousand, two hundred sixty-eight".