203899240192 has 72 divisors (see below), whose sum is σ = 410325837824. Its totient is φ = 101119601664.

The previous prime is 203899240187. The next prime is 203899240243. The reversal of 203899240192 is 291042998302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21819073 + ... + 21828415.

Almost surely, 2^203899240192 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 203899240192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205162918912).

203899240192 is an abundant number, since it is smaller than the sum of its proper divisors (206426597632).

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

203899240192 is an equidigital number, since it uses as much as digits as its factorization.

203899240192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10045 (or 10031 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 203899240192 in words is "two hundred three billion, eight hundred ninety-nine million, two hundred forty thousand, one hundred ninety-two".