28508524661100 has 144 divisors (see below), whose sum is σ = 90485972277120. Its totient is φ = 6872547532800.

The previous prime is 28508524661093. The next prime is 28508524661137. The reversal of 28508524661100 is 116642580582.

It is a self number, because there is not a number n which added to its sum of digits gives 28508524661100.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23540437 + ... + 24721836.

It is an arithmetic number, because the mean of its divisors is an integer number (628374807480).

Almost surely, 2^{28508524661100} is an apocalyptic number.

28508524661100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28508524661100 is an abundant number, since it is smaller than the sum of its proper divisors (61977447616020).

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

28508524661100 is a wasteful number, since it uses less digits than its factorization.

28508524661100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48262480 (or 48262473 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 28508524661100 in words is "twenty-eight trillion, five hundred eight billion, five hundred twenty-four million, six hundred sixty-one thousand, one hundred".