21469876200 has 288 divisors, whose sum is σ = 75517041600. Its totient is φ = 5668392960.

The previous prime is 21469876193. The next prime is 21469876201. The reversal of 21469876200 is 267896412.

It is a happy number.

21469876200 is a `hidden beast` number, since 2 + 14 + 6 + 9 + 8 + 7 + 620 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (21469876201) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5003656 + ... + 5007944.

It is an arithmetic number, because the mean of its divisors is an integer number (262211950).

Almost surely, 2^21469876200 is an apocalyptic number.

21469876200 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 21469876200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37758520800).

21469876200 is an abundant number, since it is smaller than the sum of its proper divisors (54047165400).

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

21469876200 is a wasteful number, since it uses less digits than its factorization.

21469876200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423 (or 4402 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 21469876200 in words is "twenty-one billion, four hundred sixty-nine million, eight hundred seventy-six thousand, two hundred".