28857838088732 has 48 divisors (see below), whose sum is σ = 51038795564064. Its totient is φ = 14276046720000.

The previous prime is 28857838088689. The next prime is 28857838088743. The reversal of 28857838088732 is 23788083875882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239596958 + ... + 239717370.

It is an arithmetic number, because the mean of its divisors is an integer number (1063308240918).

Almost surely, 2^{28857838088732} is an apocalyptic number.

It is an amenable number.

28857838088732 is a deficient number, since it is larger than the sum of its proper divisors (22180957475332).

28857838088732 is a wasteful number, since it uses less digits than its factorization.

28857838088732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121910 (or 121908 counting only the distinct ones).

The product of its (nonzero) digits is 2312110080, while the sum is 77.

The spelling of 28857838088732 in words is "twenty-eight trillion, eight hundred fifty-seven billion, eight hundred thirty-eight million, eighty-eight thousand, seven hundred thirty-two".