203800447872 has 320 divisors, whose sum is σ = 698640138240. Its totient is φ = 57767592960.

The previous prime is 203800447867. The next prime is 203800447891. The reversal of 203800447872 is 278744008302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9206097 + ... + 9228207.

It is an arithmetic number, because the mean of its divisors is an integer number (2183250432).

Almost surely, 2^203800447872 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 203800447872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349320069120).

203800447872 is an abundant number, since it is smaller than the sum of its proper divisors (494839690368).

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

203800447872 is a wasteful number, since it uses less digits than its factorization.

203800447872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22271 (or 22250 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The spelling of 203800447872 in words is "two hundred three billion, eight hundred million, four hundred forty-seven thousand, eight hundred seventy-two".