28718198784 has 624 divisors, whose sum is σ = 97603169664. Its totient is φ = 8360755200.

The previous prime is 28718198731. The next prime is 28718198801. The reversal of 28718198784 is 48789181782.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 470790114 + ... + 470790174.

It is an arithmetic number, because the mean of its divisors is an integer number (156415336).

Almost surely, 2^28718198784 is an apocalyptic number.

28718198784 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 28718198784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48801584832).

28718198784 is an abundant number, since it is smaller than the sum of its proper divisors (68884970880).

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

28718198784 is an equidigital number, since it uses as much as digits as its factorization.

28718198784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 120 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 63.

The spelling of 28718198784 in words is "twenty-eight billion, seven hundred eighteen million, one hundred ninety-eight thousand, seven hundred eighty-four".