201868503500 has 48 divisors (see below), whose sum is σ = 452796550752. Its totient is φ = 78565032000.

The previous prime is 201868503461. The next prime is 201868503509. The reversal of 201868503500 is 5305868102.

201868503500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (201868503509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5437406 + ... + 5474405.

It is an arithmetic number, because the mean of its divisors is an integer number (9433261474).

Almost surely, 2^201868503500 is an apocalyptic number.

201868503500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201868503500 is an abundant number, since it is smaller than the sum of its proper divisors (250928047252).

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

201868503500 is a wasteful number, since it uses less digits than its factorization.

201868503500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10911867 (or 10911855 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 201868503500 in words is "two hundred one billion, eight hundred sixty-eight million, five hundred three thousand, five hundred".