28035485728 has 24 divisors (see below), whose sum is σ = 55199430720. Its totient is φ = 14016582720.

The previous prime is 28035485713. The next prime is 28035485743. The reversal of 28035485728 is 82758453082.

It is an interprime number because it is at equal distance from previous prime (28035485713) and next prime (28035485743).

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

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, 461613 + ... + 518803.

It is an arithmetic number, because the mean of its divisors is an integer number (2299976280).

Almost surely, 2^28035485728 is an apocalyptic number.

It is an amenable number.

28035485728 is a deficient number, since it is larger than the sum of its proper divisors (27163944992).

28035485728 is a wasteful number, since it uses less digits than its factorization.

28035485728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72520 (or 72512 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 52.

The spelling of 28035485728 in words is "twenty-eight billion, thirty-five million, four hundred eighty-five thousand, seven hundred twenty-eight".