28684354589 has 8 divisors (see below), whose sum is σ = 31466841120. Its totient is φ = 25931004400.

The previous prime is 28684354519. The next prime is 28684354661. The reversal of 28684354589 is 98545348682.

It is a happy number.

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 28684354589 - 2²⁰ = 28683306013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28684354519) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7282022 + ... + 7285959.

It is an arithmetic number, because the mean of its divisors is an integer number (3933355140).

Almost surely, 2^28684354589 is an apocalyptic number.

It is an amenable number.

28684354589 is a deficient number, since it is larger than the sum of its proper divisors (2782486531).

28684354589 is a wasteful number, since it uses less digits than its factorization.

28684354589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14568171.

The product of its digits is 66355200, while the sum is 62.

The spelling of 28684354589 in words is "twenty-eight billion, six hundred eighty-four million, three hundred fifty-four thousand, five hundred eighty-nine".