28617235842064 has 15 divisors (see below), whose sum is σ = 55445935902717. Its totient is φ = 14308607222016.

The previous prime is 28617235842059. The next prime is 28617235842113. The reversal of 28617235842064 is 46024853271682.

The square root of 28617235842064 is 5349508.

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

It can be written as a sum of positive squares in only one way, i.e., 18149474448400 + 10467761393664 = 4260220^2 + 3235392^2 .

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 20729344 + ... + 22066720.

Almost surely, 2^{28617235842064} is an apocalyptic number.

28617235842064 is the 5349508-th square number.

It is an amenable number.

28617235842064 is a deficient number, since it is larger than the sum of its proper divisors (26828700060653).

28617235842064 is an frugal number, since it uses more digits than its factorization.

28617235842064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674762 (or 1337379 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 58.

The spelling of 28617235842064 in words is "twenty-eight trillion, six hundred seventeen billion, two hundred thirty-five million, eight hundred forty-two thousand, sixty-four".