203828959872 has 320 divisors, whose sum is σ = 645052161600. Its totient is φ = 63932903424.

The previous prime is 203828959871. The next prime is 203828959913. The reversal of 203828959872 is 278959828302.

203828959872 is a `hidden beast` number, since 2 + 0 + 38 + 2 + 8 + 9 + 598 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (203828959871) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 42827829 + ... + 42832587.

It is an arithmetic number, because the mean of its divisors is an integer number (2015788005).

Almost surely, 2^203828959872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203828959872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322526080800).

203828959872 is an abundant number, since it is smaller than the sum of its proper divisors (441223201728).

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

203828959872 is an frugal number, since it uses more digits than its factorization.

203828959872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4817 (or 4781 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 203828959872 in words is "two hundred three billion, eight hundred twenty-eight million, nine hundred fifty-nine thousand, eight hundred seventy-two".