28328080553 has 8 divisors (see below), whose sum is σ = 29022130368. Its totient is φ = 27635633424.

The previous prime is 28328080537. The next prime is 28328080559. The reversal of 28328080553 is 35508082382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28328080553 - 2⁴ = 28328080537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28328080559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364850 + ... + 435627.

It is an arithmetic number, because the mean of its divisors is an integer number (3627766296).

Almost surely, 2^28328080553 is an apocalyptic number.

It is an amenable number.

28328080553 is a deficient number, since it is larger than the sum of its proper divisors (694049815).

28328080553 is an equidigital number, since it uses as much as digits as its factorization.

28328080553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801343.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 28328080553 in words is "twenty-eight billion, three hundred twenty-eight million, eighty thousand, five hundred fifty-three".