28080352805 has 8 divisors (see below), whose sum is σ = 34413368832. Its totient is φ = 21986318608.

The previous prime is 28080352799. The next prime is 28080352873. The reversal of 28080352805 is 50825308082.

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 28080352805 - 2¹⁴ = 28080336421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59745197 + ... + 59745666.

It is an arithmetic number, because the mean of its divisors is an integer number (4301671104).

Almost surely, 2^28080352805 is an apocalyptic number.

It is an amenable number.

28080352805 is a deficient number, since it is larger than the sum of its proper divisors (6333016027).

28080352805 is a wasteful number, since it uses less digits than its factorization.

28080352805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119490915.

The product of its (nonzero) digits is 153600, while the sum is 41.

The spelling of 28080352805 in words is "twenty-eight billion, eighty million, three hundred fifty-two thousand, eight hundred five".