28386288540480 has 224 divisors, whose sum is σ = 97371372204288. Its totient is φ = 6964925644800.

The previous prime is 28386288540457. The next prime is 28386288540529. The reversal of 28386288540480 is 8404588268382.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224460 + ... + 7538100.

It is an arithmetic number, because the mean of its divisors is an integer number (434693625912).

Almost surely, 2^{28386288540480} is an apocalyptic number.

28386288540480 is a gapful number since it is divisible by the number (20) 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 28386288540480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48685686102144).

28386288540480 is an abundant number, since it is smaller than the sum of its proper divisors (68985083663808).

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

28386288540480 is a wasteful number, since it uses less digits than its factorization.

28386288540480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7313985 (or 7313975 counting only the distinct ones).

The product of its (nonzero) digits is 188743680, while the sum is 66.

The spelling of 28386288540480 in words is "twenty-eight trillion, three hundred eighty-six billion, two hundred eighty-eight million, five hundred forty thousand, four hundred eighty".