28720000048 has 20 divisors (see below), whose sum is σ = 55890139320. Its totient is φ = 14296738304.

The previous prime is 28720000027. The next prime is 28720000063. The reversal of 28720000048 is 84000002782.

It is a junction number, because it is equal to n+sod(n) for n = 28719999974 and 28720000019.

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, 3950113 + ... + 3957376.

It is an arithmetic number, because the mean of its divisors is an integer number (2794506966).

Almost surely, 2^28720000048 is an apocalyptic number.

It is an amenable number.

28720000048 is a deficient number, since it is larger than the sum of its proper divisors (27170139272).

28720000048 is a wasteful number, since it uses less digits than its factorization.

28720000048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7907724 (or 7907718 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The spelling of 28720000048 in words is "twenty-eight billion, seven hundred twenty million, forty-eight", and thus it is an aban number.