28320610404 has 12 divisors (see below), whose sum is σ = 66081424304. Its totient is φ = 9440203464.

The previous prime is 28320610343. The next prime is 28320610429. The reversal of 28320610404 is 40401602382.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180025422 + ... + 1180025445.

Almost surely, 2^28320610404 is an apocalyptic number.

It is an amenable number.

28320610404 is an abundant number, since it is smaller than the sum of its proper divisors (37760813900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28320610404 is a wasteful number, since it uses less digits than its factorization.

28320610404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360050874 (or 2360050872 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The spelling of 28320610404 in words is "twenty-eight billion, three hundred twenty million, six hundred ten thousand, four hundred four".