203885104950 has 144 divisors (see below), whose sum is σ = 553447992240. Its totient is φ = 53807120640.

The previous prime is 203885104937. The next prime is 203885104993. The reversal of 203885104950 is 59401588302.

203885104950 is a `hidden beast` number, since 2 + 0 + 3 + 88 + 510 + 4 + 9 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 203885104896 and 203885104905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 53609749 + ... + 53613551.

It is an arithmetic number, because the mean of its divisors is an integer number (3843388835).

Almost surely, 2^203885104950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203885104950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276723996120).

203885104950 is an abundant number, since it is smaller than the sum of its proper divisors (349562887290).

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

203885104950 is a wasteful number, since it uses less digits than its factorization.

203885104950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5023 (or 5015 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 203885104950 in words is "two hundred three billion, eight hundred eighty-five million, one hundred four thousand, nine hundred fifty".