28554400000 has 216 divisors, whose sum is σ = 81435412800. Its totient is φ = 9788160000.

The previous prime is 28554399997. The next prime is 28554400027. The reversal of 28554400000 is 445582.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5597451 + ... + 5602549.

It is an arithmetic number, because the mean of its divisors is an integer number (377015800).

Almost surely, 2^28554400000 is an apocalyptic number.

28554400000 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 28554400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40717706400).

28554400000 is an abundant number, since it is smaller than the sum of its proper divisors (52881012800).

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

28554400000 is an frugal number, since it uses more digits than its factorization.

28554400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147 (or 5113 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 28554400000 its reverse (445582), we get a palindrome (28554845582).

The spelling of 28554400000 in words is "twenty-eight billion, five hundred fifty-four million, four hundred thousand".