28375548862528 has 224 divisors, whose sum is σ = 66873755934720. Its totient is φ = 11689694392320.

The previous prime is 28375548862517. The next prime is 28375548862537. The reversal of 28375548862528 is 82526884557382.

It is a tau number, because it is divible by the number of its divisors (224).

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 31 ways as a sum of consecutive naturals, for example, 6435821988 + ... + 6435826396.

It is an arithmetic number, because the mean of its divisors is an integer number (298543553280).

Almost surely, 2^{28375548862528} is an apocalyptic number.

28375548862528 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28375548862528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33436877967360).

28375548862528 is an abundant number, since it is smaller than the sum of its proper divisors (38498207072192).

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

28375548862528 is a wasteful number, since it uses less digits than its factorization.

28375548862528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7465 (or 7455 counting only the distinct ones).

The product of its digits is 2064384000, while the sum is 73.

The spelling of 28375548862528 in words is "twenty-eight trillion, three hundred seventy-five billion, five hundred forty-eight million, eight hundred sixty-two thousand, five hundred twenty-eight".