28328255279 has 16 divisors (see below), whose sum is σ = 29827325952. Its totient is φ = 26852393568.

The previous prime is 28328255261. The next prime is 28328255287. The reversal of 28328255279 is 97255282382.

It is a cyclic number.

It is not a de Polignac number, because 28328255279 - 2⁸ = 28328255023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28328255279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28328275279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1372772 + ... + 1393254.

It is an arithmetic number, because the mean of its divisors is an integer number (1864207872).

Almost surely, 2^28328255279 is an apocalyptic number.

28328255279 is a deficient number, since it is larger than the sum of its proper divisors (1499070673).

28328255279 is a wasteful number, since it uses less digits than its factorization.

28328255279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21046.

The product of its digits is 4838400, while the sum is 53.

The spelling of 28328255279 in words is "twenty-eight billion, three hundred twenty-eight million, two hundred fifty-five thousand, two hundred seventy-nine".