20203868872 has 16 divisors (see below), whose sum is σ = 41326095600. Its totient is φ = 9183576720.

The previous prime is 20203868749. The next prime is 20203868873. The reversal of 20203868872 is 27886830202.

It is not an unprimeable number, because it can be changed into a prime (20203868873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114794622 + ... + 114794797.

It is an arithmetic number, because the mean of its divisors is an integer number (2582880975).

Almost surely, 2^20203868872 is an apocalyptic number.

20203868872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20203868872 is an abundant number, since it is smaller than the sum of its proper divisors (21122226728).

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

20203868872 is a wasteful number, since it uses less digits than its factorization.

20203868872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229589436 (or 229589432 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 20203868872 in words is "twenty billion, two hundred three million, eight hundred sixty-eight thousand, eight hundred seventy-two".