28875514236 has 12 divisors (see below), whose sum is σ = 67376199912. Its totient is φ = 9625171408.

The previous prime is 28875514229. The next prime is 28875514277. The reversal of 28875514236 is 63241557882.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1203146415 + ... + 1203146438.

It is an arithmetic number, because the mean of its divisors is an integer number (5614683326).

Almost surely, 2^28875514236 is an apocalyptic number.

It is an amenable number.

28875514236 is an abundant number, since it is smaller than the sum of its proper divisors (38500685676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28875514236 is a wasteful number, since it uses less digits than its factorization.

28875514236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406292860 (or 2406292858 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 51.

The spelling of 28875514236 in words is "twenty-eight billion, eight hundred seventy-five million, five hundred fourteen thousand, two hundred thirty-six".