28547473505 has 16 divisors (see below), whose sum is σ = 34382335680. Its totient is φ = 22754542272.

The previous prime is 28547473459. The next prime is 28547473529. The reversal of 28547473505 is 50537474582.

It is a cyclic number.

It is not a de Polignac number, because 28547473505 - 2¹² = 28547469409 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1724327 + ... + 1740803.

It is an arithmetic number, because the mean of its divisors is an integer number (2148895980).

Almost surely, 2^28547473505 is an apocalyptic number.

It is an amenable number.

28547473505 is a deficient number, since it is larger than the sum of its proper divisors (5834862175).

28547473505 is a wasteful number, since it uses less digits than its factorization.

28547473505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17728.

The product of its (nonzero) digits is 4704000, while the sum is 50.

The spelling of 28547473505 in words is "twenty-eight billion, five hundred forty-seven million, four hundred seventy-three thousand, five hundred five".