28285080868 has 48 divisors (see below), whose sum is σ = 54357722496. Its totient is φ = 12771682560.

The previous prime is 28285080851. The next prime is 28285080871. The reversal of 28285080868 is 86808058282.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4313080 + ... + 4319632.

It is an arithmetic number, because the mean of its divisors is an integer number (1132452552).

Almost surely, 2^28285080868 is an apocalyptic number.

It is an amenable number.

28285080868 is a deficient number, since it is larger than the sum of its proper divisors (26072641628).

28285080868 is a wasteful number, since it uses less digits than its factorization.

28285080868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7204 (or 7202 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 55.

The spelling of 28285080868 in words is "twenty-eight billion, two hundred eighty-five million, eighty thousand, eight hundred sixty-eight".