28255835184 has 120 divisors (see below), whose sum is σ = 77653238208. Its totient is φ = 8851706880.

The previous prime is 28255835173. The next prime is 28255835243. The reversal of 28255835184 is 48153855282.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15133419 + ... + 15135285.

Almost surely, 2^28255835184 is an apocalyptic number.

28255835184 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28255835184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38826619104).

28255835184 is an abundant number, since it is smaller than the sum of its proper divisors (49397403024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28255835184 is a wasteful number, since it uses less digits than its factorization.

28255835184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003 (or 2980 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 51.

The spelling of 28255835184 in words is "twenty-eight billion, two hundred fifty-five million, eight hundred thirty-five thousand, one hundred eighty-four".