28854320000 has 160 divisors (see below), whose sum is σ = 78363509400. Its totient is φ = 10492160000.

The previous prime is 28854319993. The next prime is 28854320009. The reversal of 28854320000 is 2345882.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28854320009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 863606 + ... + 896394.

Almost surely, 2^28854320000 is an apocalyptic number.

28854320000 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 28854320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39181754700).

28854320000 is an abundant number, since it is smaller than the sum of its proper divisors (49509189400).

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

28854320000 is an equidigital number, since it uses as much as digits as its factorization.

28854320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32834 (or 32807 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 28854320000 its reverse (2345882), we get a palindrome (28856665882).

The spelling of 28854320000 in words is "twenty-eight billion, eight hundred fifty-four million, three hundred twenty thousand".