28545418432 has 28 divisors (see below), whose sum is σ = 57327293016. Its totient is φ = 14100746240.

The previous prime is 28545418351. The next prime is 28545418459. The reversal of 28545418432 is 23481454582.

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 3 ways as a sum of consecutive naturals, for example, 2681569 + ... + 2692192.

It is an arithmetic number, because the mean of its divisors is an integer number (2047403322).

Almost surely, 2^28545418432 is an apocalyptic number.

It is an amenable number.

28545418432 is an abundant number, since it is smaller than the sum of its proper divisors (28781874584).

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

28545418432 is an equidigital number, since it uses as much as digits as its factorization.

28545418432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5373856 (or 5373846 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 46.

The spelling of 28545418432 in words is "twenty-eight billion, five hundred forty-five million, four hundred eighteen thousand, four hundred thirty-two".