28604805313 has 24 divisors (see below), whose sum is σ = 35154864000. Its totient is φ = 23169208608.

The previous prime is 28604805293. The next prime is 28604805373. The reversal of 28604805313 is 31350840682.

It is a de Polignac number, because none of the positive numbers 2^k-28604805313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28604805373) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 147363 + ... + 280936.

It is an arithmetic number, because the mean of its divisors is an integer number (1464786000).

Almost surely, 2^28604805313 is an apocalyptic number.

It is an amenable number.

28604805313 is a deficient number, since it is larger than the sum of its proper divisors (6550058687).

28604805313 is a wasteful number, since it uses less digits than its factorization.

28604805313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428389 (or 428382 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 28604805313 in words is "twenty-eight billion, six hundred four million, eight hundred five thousand, three hundred thirteen".