28080006321 has 16 divisors (see below), whose sum is σ = 38666246400. Its totient is φ = 18115836288.

The previous prime is 28080006319. The next prime is 28080006341. The reversal of 28080006321 is 12360008082.

It is not a de Polignac number, because 28080006321 - 2¹ = 28080006319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28080006341) 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 15 ways as a sum of consecutive naturals, for example, 1106266 + ... + 1131363.

It is an arithmetic number, because the mean of its divisors is an integer number (2416640400).

Almost surely, 2^28080006321 is an apocalyptic number.

It is an amenable number.

28080006321 is a deficient number, since it is larger than the sum of its proper divisors (10586240079).

28080006321 is a wasteful number, since it uses less digits than its factorization.

28080006321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237768.

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 28080006321 in words is "twenty-eight billion, eighty million, six thousand, three hundred twenty-one".