28016605904 has 40 divisors (see below), whose sum is σ = 62093287680. Its totient is φ = 11996178048.

The previous prime is 28016605889. The next prime is 28016605913. The reversal of 28016605904 is 40950661082.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10142 + ... + 236930.

It is an arithmetic number, because the mean of its divisors is an integer number (1552332192).

Almost surely, 2^28016605904 is an apocalyptic number.

It is an amenable number.

28016605904 is an abundant number, since it is smaller than the sum of its proper divisors (34076681776).

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

28016605904 is a wasteful number, since it uses less digits than its factorization.

28016605904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227907 (or 227901 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 28016605904 in words is "twenty-eight billion, sixteen million, six hundred five thousand, nine hundred four".