28120453384 has 16 divisors (see below), whose sum is σ = 55018278720. Its totient is φ = 13448912400.

The previous prime is 28120453363. The next prime is 28120453391. The reversal of 28120453384 is 48335402182.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76414092 + ... + 76414459.

It is an arithmetic number, because the mean of its divisors is an integer number (3438642420).

Almost surely, 2^28120453384 is an apocalyptic number.

It is an amenable number.

28120453384 is a deficient number, since it is larger than the sum of its proper divisors (26897825336).

28120453384 is a wasteful number, since it uses less digits than its factorization.

28120453384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152828580 (or 152828576 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 28120453384 in words is "twenty-eight billion, one hundred twenty million, four hundred fifty-three thousand, three hundred eighty-four".