28395113204 has 24 divisors (see below), whose sum is σ = 51079964040. Its totient is φ = 13801522176.

The previous prime is 28395113177. The next prime is 28395113207. The reversal of 28395113204 is 40231159382.

It can be written as a sum of positive squares in 4 ways, for example, as 3260181604 + 25134931600 = 57098^2 + 158540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28395113207) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 82124 + ... + 252060.

It is an arithmetic number, because the mean of its divisors is an integer number (2128331835).

Almost surely, 2^28395113204 is an apocalyptic number.

It is an amenable number.

28395113204 is a deficient number, since it is larger than the sum of its proper divisors (22684850836).

28395113204 is a wasteful number, since it uses less digits than its factorization.

28395113204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171107 (or 171105 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 28395113204 in words is "twenty-eight billion, three hundred ninety-five million, one hundred thirteen thousand, two hundred four".