28327830525858 has 16 divisors (see below), whose sum is σ = 56817998193600. Its totient is φ = 9415553984976.

The previous prime is 28327830525857. The next prime is 28327830525913. The reversal of 28327830525858 is 85852503872382.

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 7 ways as a sum of consecutive naturals, for example, 6764045310 + ... + 6764049497.

It is an arithmetic number, because the mean of its divisors is an integer number (3551124887100).

Almost surely, 2^{28327830525858} is an apocalyptic number.

28327830525858 is an abundant number, since it is smaller than the sum of its proper divisors (28490167667742).

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

28327830525858 is a wasteful number, since it uses less digits than its factorization.

28327830525858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13528095161.

The product of its (nonzero) digits is 258048000, while the sum is 66.

The spelling of 28327830525858 in words is "twenty-eight trillion, three hundred twenty-seven billion, eight hundred thirty million, five hundred twenty-five thousand, eight hundred fifty-eight".