228444643860000 has 480 divisors, whose sum is σ = 807147815620608. Its totient is φ = 56390252160000.

The previous prime is 228444643859987. The next prime is 228444643860047. The reversal of 228444643860000 is 68346444822.

228444643860000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (480).

It is a super-3 number, since 3×228444643860000³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 40110007 + ... + 45449993.

Almost surely, 2^{228444643860000} is an apocalyptic number.

228444643860000 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 228444643860000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403573907810304).

228444643860000 is an abundant number, since it is smaller than the sum of its proper divisors (578703171760608).

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

228444643860000 is a wasteful number, since it uses less digits than its factorization.

228444643860000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340074 (or 5340051 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 51.

The spelling of 228444643860000 in words is "two hundred twenty-eight trillion, four hundred forty-four billion, six hundred forty-three million, eight hundred sixty thousand".