20263886800 has 30 divisors (see below), whose sum is σ = 48683988998. Its totient is φ = 8105554560.

The previous prime is 20263886779. The next prime is 20263886803. The reversal of 20263886800 is 868836202.

It can be written as a sum of positive squares in 3 ways, for example, as 3552636816 + 16711249984 = 59604^2 + 129272^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20263886803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25329459 + ... + 25330258.

Almost surely, 2^20263886800 is an apocalyptic number.

20263886800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20263886800 is an abundant number, since it is smaller than the sum of its proper divisors (28420102198).

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

20263886800 is a wasteful number, since it uses less digits than its factorization.

20263886800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50659735 (or 50659724 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 20263886800 in words is "twenty billion, two hundred sixty-three million, eight hundred eighty-six thousand, eight hundred".