28935403808 has 24 divisors (see below), whose sum is σ = 56987607600. Its totient is φ = 14462360640.

The previous prime is 28935403793. The next prime is 28935403811. The reversal of 28935403808 is 80830453982.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78158 + ... + 252941.

It is an arithmetic number, because the mean of its divisors is an integer number (2374483650).

Almost surely, 2^28935403808 is an apocalyptic number.

It is an amenable number.

28935403808 is a deficient number, since it is larger than the sum of its proper divisors (28052203792).

28935403808 is a wasteful number, since it uses less digits than its factorization.

28935403808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333840 (or 333832 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 28935403808 in words is "twenty-eight billion, nine hundred thirty-five million, four hundred three thousand, eight hundred eight".