28357288356 has 24 divisors (see below), whose sum is σ = 66169835424. Its totient is φ = 9452025280.

The previous prime is 28357288327. The next prime is 28357288361. The reversal of 28357288356 is 65388275382.

It is a junction number, because it is equal to n+sod(n) for n = 28357288296 and 28357288305.

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 7 ways as a sum of consecutive naturals, for example, 408991 + ... + 473273.

It is an arithmetic number, because the mean of its divisors is an integer number (2757076476).

Almost surely, 2^28357288356 is an apocalyptic number.

It is an amenable number.

28357288356 is an abundant number, since it is smaller than the sum of its proper divisors (37812547068).

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

28357288356 is a wasteful number, since it uses less digits than its factorization.

28357288356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101051 (or 101049 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 57.

The spelling of 28357288356 in words is "twenty-eight billion, three hundred fifty-seven million, two hundred eighty-eight thousand, three hundred fifty-six".