28544464660804 has 9 divisors (see below), whose sum is σ = 49952831855871. Its totient is φ = 14272226987700.

The previous prime is 28544464660799. The next prime is 28544464660849. The reversal of 28544464660804 is 40806646444582.

The square root of 28544464660804 is 5342702.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9349729 + ... + 12021079.

Almost surely, 2^{28544464660804} is an apocalyptic number.

28544464660804 is the 5342702-nd square number.

It is an amenable number.

28544464660804 is a deficient number, since it is larger than the sum of its proper divisors (21408367195067).

28544464660804 is an frugal number, since it uses more digits than its factorization.

28544464660804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5342706 (or 2671353 counting only the distinct ones).

The product of its (nonzero) digits is 141557760, while the sum is 61.

The spelling of 28544464660804 in words is "twenty-eight trillion, five hundred forty-four billion, four hundred sixty-four million, six hundred sixty thousand, eight hundred four".