28300358905 has 160 divisors (see below), whose sum is σ = 45598039200. Its totient is φ = 16828051968.

The previous prime is 28300358899. The next prime is 28300358921. The reversal of 28300358905 is 50985300382.

It can be written as a sum of positive squares in 16 ways, for example, as 24632360809 + 3667998096 = 156947^2 + 60564^2 .

It is not a de Polignac number, because 28300358905 - 2¹⁹ = 28299834617 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 764874547 + ... + 764874583.

It is an arithmetic number, because the mean of its divisors is an integer number (284987745).

Almost surely, 2^28300358905 is an apocalyptic number.

It is an amenable number.

28300358905 is a deficient number, since it is larger than the sum of its proper divisors (17297680295).

28300358905 is an frugal number, since it uses more digits than its factorization.

28300358905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 28300358905 in words is "twenty-eight billion, three hundred million, three hundred fifty-eight thousand, nine hundred five".