28718604288 has 336 divisors, whose sum is σ = 95871218976. Its totient is φ = 8186757120.

The previous prime is 28718604281. The next prime is 28718604293. The reversal of 28718604288 is 88240681782.

28718604288 is a `hidden beast` number, since 2 + 8 + 7 + 1 + 8 + 604 + 28 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (28718604281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13786095 + ... + 13788177.

Almost surely, 2^28718604288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28718604288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47935609488).

28718604288 is an abundant number, since it is smaller than the sum of its proper divisors (67152614688).

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

28718604288 is a wasteful number, since it uses less digits than its factorization.

28718604288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143 (or 2116 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 54.

The spelling of 28718604288 in words is "twenty-eight billion, seven hundred eighteen million, six hundred four thousand, two hundred eighty-eight".