28289853434 has 8 divisors (see below), whose sum is σ = 42439640160. Its totient is φ = 14143306716.

The previous prime is 28289853379. The next prime is 28289853437. The reversal of 28289853434 is 43435898282.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28289853434.

It is not an unprimeable number, because it can be changed into a prime (28289853437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788054 + ... + 823169.

It is an arithmetic number, because the mean of its divisors is an integer number (5304955020).

Almost surely, 2^28289853434 is an apocalyptic number.

28289853434 is a deficient number, since it is larger than the sum of its proper divisors (14149786726).

28289853434 is a wasteful number, since it uses less digits than its factorization.

28289853434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620004.

The product of its digits is 13271040, while the sum is 56.

The spelling of 28289853434 in words is "twenty-eight billion, two hundred eighty-nine million, eight hundred fifty-three thousand, four hundred thirty-four".