28041216000 has 544 divisors, whose sum is σ = 107306254848. Its totient is φ = 6370099200.

The previous prime is 28041215989. The next prime is 28041216001. The reversal of 28041216000 is 61214082.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (28041216001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172031919 + ... + 172032081.

Almost surely, 2^28041216000 is an apocalyptic number.

28041216000 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 28041216000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53653127424).

28041216000 is an abundant number, since it is smaller than the sum of its proper divisors (79265038848).

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

28041216000 is an frugal number, since it uses more digits than its factorization.

28041216000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The spelling of 28041216000 in words is "twenty-eight billion, forty-one million, two hundred sixteen thousand".