28327830525856 has 24 divisors (see below), whose sum is σ = 58195217060064. Its totient is φ = 13548092859840.

The previous prime is 28327830525817. The next prime is 28327830525857. The reversal of 28327830525856 is 65852503872382.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28327830525857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19244449350 + ... + 19244450821.

It is an arithmetic number, because the mean of its divisors is an integer number (2424800710836).

Almost surely, 2^{28327830525856} is an apocalyptic number.

It is an amenable number.

28327830525856 is an abundant number, since it is smaller than the sum of its proper divisors (29867386534208).

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

28327830525856 is a wasteful number, since it uses less digits than its factorization.

28327830525856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38488900204 (or 38488900196 counting only the distinct ones).

The product of its (nonzero) digits is 193536000, while the sum is 64.

The spelling of 28327830525856 in words is "twenty-eight trillion, three hundred twenty-seven billion, eight hundred thirty million, five hundred twenty-five thousand, eight hundred fifty-six".