28080186748 has 48 divisors (see below), whose sum is σ = 50332423680. Its totient is φ = 13704062400.

The previous prime is 28080186737. The next prime is 28080186817. The reversal of 28080186748 is 84768108082.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28080186695 and 28080186704.

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 15 ways as a sum of consecutive naturals, for example, 18197665 + ... + 18199207.

It is an arithmetic number, because the mean of its divisors is an integer number (1048592160).

Almost surely, 2^28080186748 is an apocalyptic number.

It is an amenable number.

28080186748 is a deficient number, since it is larger than the sum of its proper divisors (22252236932).

28080186748 is a wasteful number, since it uses less digits than its factorization.

28080186748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218 (or 2216 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 52.

The spelling of 28080186748 in words is "twenty-eight billion, eighty million, one hundred eighty-six thousand, seven hundred forty-eight".