28357828205 has 16 divisors (see below), whose sum is σ = 40231797120. Its totient is φ = 18774837312.

The previous prime is 28357828199. The next prime is 28357828271. The reversal of 28357828205 is 50282875382.

It is not a de Polignac number, because 28357828205 - 2⁶ = 28357828141 is a prime.

It is a congruent number.

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, 13968359 + ... + 13970388.

It is an arithmetic number, because the mean of its divisors is an integer number (2514487320).

Almost surely, 2^28357828205 is an apocalyptic number.

It is an amenable number.

28357828205 is a deficient number, since it is larger than the sum of its proper divisors (11873968915).

28357828205 is a wasteful number, since it uses less digits than its factorization.

28357828205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27938788.

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 28357828205 in words is "twenty-eight billion, three hundred fifty-seven million, eight hundred twenty-eight thousand, two hundred five".