20868019200 has 1056 divisors, whose sum is σ = 92596454400. Its totient is φ = 4498882560.

The previous prime is 20868019199. The next prime is 20868019213. The reversal of 20868019200 is 291086802.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 91929487 + ... + 91929713.

Almost surely, 2^20868019200 is an apocalyptic number.

20868019200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20868019200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46298227200).

20868019200 is an abundant number, since it is smaller than the sum of its proper divisors (71728435200).

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

20868019200 is a wasteful number, since it uses less digits than its factorization.

20868019200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 20868019200 in words is "twenty billion, eight hundred sixty-eight million, nineteen thousand, two hundred".