28524615728 has 40 divisors (see below), whose sum is σ = 63386493600. Its totient is φ = 12181317120.

The previous prime is 28524615701. The next prime is 28524615733. The reversal of 28524615728 is 82751642582.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421703 + ... + 484646.

It is an arithmetic number, because the mean of its divisors is an integer number (1584662340).

Almost surely, 2^28524615728 is an apocalyptic number.

28524615728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28524615728 is an abundant number, since it is smaller than the sum of its proper divisors (34861877872).

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

28524615728 is a wasteful number, since it uses less digits than its factorization.

28524615728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906645 (or 906639 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 50.

The spelling of 28524615728 in words is "twenty-eight billion, five hundred twenty-four million, six hundred fifteen thousand, seven hundred twenty-eight".