28154044800000 has 2640 divisors, whose sum is σ = 122597218275840. Its totient is φ = 6302085120000.

The previous prime is 28154044799999. The next prime is 28154044800023. The reversal of 28154044800000 is 844045182.

28154044800000 is a `hidden beast` number, since 28 + 154 + 0 + 4 + 480 + 0 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 107049599869 + ... + 107049600131.

It is an arithmetic number, because the mean of its divisors is an integer number (46438340256).

Almost surely, 2^{28154044800000} is an apocalyptic number.

28154044800000 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 28154044800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61298609137920).

28154044800000 is an abundant number, since it is smaller than the sum of its proper divisors (94443173475840).

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

28154044800000 is an frugal number, since it uses more digits than its factorization.

28154044800000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

Adding to 28154044800000 its reverse (844045182), we get a palindrome (28154888845182).

The spelling of 28154044800000 in words is "twenty-eight trillion, one hundred fifty-four billion, forty-four million, eight hundred thousand".