28550367359 has 4 divisors (see below), whose sum is σ = 28556864904. Its totient is φ = 28543869816.

The previous prime is 28550367353. The next prime is 28550367389. The reversal of 28550367359 is 95376305582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28550367359 - 2¹² = 28550363263 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 28550367359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28550367353) 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, 3242177 + ... + 3250970.

It is an arithmetic number, because the mean of its divisors is an integer number (7139216226).

Almost surely, 2^28550367359 is an apocalyptic number.

28550367359 is a deficient number, since it is larger than the sum of its proper divisors (6497545).

28550367359 is an equidigital number, since it uses as much as digits as its factorization.

28550367359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6497544.

The product of its (nonzero) digits is 6804000, while the sum is 53.

The spelling of 28550367359 in words is "twenty-eight billion, five hundred fifty million, three hundred sixty-seven thousand, three hundred fifty-nine".