28718341344 has 720 divisors, whose sum is σ = 107971928064. Its totient is φ = 7328724480.

The previous prime is 28718341321. The next prime is 28718341403. The reversal of 28718341344 is 44314381782.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 28718341344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 226128609 + ... + 226128735.

Almost surely, 2^28718341344 is an apocalyptic number.

28718341344 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 28718341344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53985964032).

28718341344 is an abundant number, since it is smaller than the sum of its proper divisors (79253586720).

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

28718341344 is a wasteful number, since it uses less digits than its factorization.

28718341344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 253 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The spelling of 28718341344 in words is "twenty-eight billion, seven hundred eighteen million, three hundred forty-one thousand, three hundred forty-four".