28110980065 has 8 divisors (see below), whose sum is σ = 38552201280. Its totient is φ = 19276100592.

The previous prime is 28110980059. The next prime is 28110980069. The reversal of 28110980065 is 56008901182.

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

It is not a de Polignac number, because 28110980065 - 2⁵ = 28110980033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28110980069) 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, 401585395 + ... + 401585464.

It is an arithmetic number, because the mean of its divisors is an integer number (4819025160).

Almost surely, 2^28110980065 is an apocalyptic number.

It is an amenable number.

28110980065 is a deficient number, since it is larger than the sum of its proper divisors (10441221215).

28110980065 is an equidigital number, since it uses as much as digits as its factorization.

28110980065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803170871.

The product of its (nonzero) digits is 34560, while the sum is 40.

The spelling of 28110980065 in words is "twenty-eight billion, one hundred ten million, nine hundred eighty thousand, sixty-five".