6528047905 has 4 divisors (see below), whose sum is σ = 7833657492. Its totient is φ = 5222438320.

The previous prime is 6528047893. The next prime is 6528047941. The reversal of 6528047905 is 5097408256.

6528047905 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2368184896 + 4159863009 = 48664^2 + 64497^2 .

It is not a de Polignac number, because 6528047905 - 2¹¹ = 6528045857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652804786 + ... + 652804795.

It is an arithmetic number, because the mean of its divisors is an integer number (1958414373).

Almost surely, 2^6528047905 is an apocalyptic number.

It is an amenable number.

6528047905 is a deficient number, since it is larger than the sum of its proper divisors (1305609587).

6528047905 is a wasteful number, since it uses less digits than its factorization.

6528047905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305609586.

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 6528047905 is about 80796.3359627155. The cubic root of 6528047905 is about 1868.9360629794.

The spelling of 6528047905 in words is "six billion, five hundred twenty-eight million, forty-seven thousand, nine hundred five".