28508800871 has 8 divisors (see below), whose sum is σ = 29495854080. Its totient is φ = 27522013792.

The previous prime is 28508800841. The next prime is 28508800877. The reversal of 28508800871 is 17800880582.

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 28508800871 - 2⁶ = 28508800807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28508800877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165146 + ... + 290328.

It is an arithmetic number, because the mean of its divisors is an integer number (3686981760).

Almost surely, 2^28508800871 is an apocalyptic number.

28508800871 is a deficient number, since it is larger than the sum of its proper divisors (987053209).

28508800871 is a wasteful number, since it uses less digits than its factorization.

28508800871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133065.

The product of its (nonzero) digits is 286720, while the sum is 47.

The spelling of 28508800871 in words is "twenty-eight billion, five hundred eight million, eight hundred thousand, eight hundred seventy-one".