28504091044 has 48 divisors (see below), whose sum is σ = 59171898240. Its totient is φ = 11843619840.

The previous prime is 28504090999. The next prime is 28504091059. The reversal of 28504091044 is 44019040582.

It is a junction number, because it is equal to n+sod(n) for n = 28504090994 and 28504091012.

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, 182989 + ... + 300820.

It is an arithmetic number, because the mean of its divisors is an integer number (1232747880).

Almost surely, 2^28504091044 is an apocalyptic number.

It is an amenable number.

28504091044 is an abundant number, since it is smaller than the sum of its proper divisors (30667807196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28504091044 is a wasteful number, since it uses less digits than its factorization.

28504091044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483940 (or 483938 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 28504091044 in words is "twenty-eight billion, five hundred four million, ninety-one thousand, forty-four".