28482688608809 has 8 divisors (see below), whose sum is σ = 28766715597000. Its totient is φ = 28198701232000.

The previous prime is 28482688608799. The next prime is 28482688608817. The reversal of 28482688608809 is 90880688628482.

It can be written as a sum of positive squares in 4 ways, for example, as 19331894208025 + 9150794400784 = 4396805^2 + 3025028^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28482688608809 - 2³² = 28478393641513 is a prime.

It is a super-2 number, since 2×28482688608809² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28482688608809.

It is not an unprimeable number, because it can be changed into a prime (28482688608839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8456522 + ... + 11334819.

It is an arithmetic number, because the mean of its divisors is an integer number (3595839449625).

Almost surely, 2^{28482688608809} is an apocalyptic number.

It is an amenable number.

28482688608809 is a deficient number, since it is larger than the sum of its proper divisors (284026988191).

28482688608809 is a wasteful number, since it uses less digits than its factorization.

28482688608809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19805691.

The product of its (nonzero) digits is 1358954496, while the sum is 77.

The spelling of 28482688608809 in words is "twenty-eight trillion, four hundred eighty-two billion, six hundred eighty-eight million, six hundred eight thousand, eight hundred nine".