21801482304 has 112 divisors (see below), whose sum is σ = 66009487488. Its totient is φ = 6220873728.

The previous prime is 21801482293. The next prime is 21801482347. The reversal of 21801482304 is 40328410812.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1060992 + ... + 1081344.

It is an arithmetic number, because the mean of its divisors is an integer number (589370424).

Almost surely, 2^21801482304 is an apocalyptic number.

21801482304 is a gapful number since it is divisible by the number (24) 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 21801482304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33004743744).

21801482304 is an abundant number, since it is smaller than the sum of its proper divisors (44208005184).

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

21801482304 is a wasteful number, since it uses less digits than its factorization.

21801482304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21172 (or 21162 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The spelling of 21801482304 in words is "twenty-one billion, eight hundred one million, four hundred eighty-two thousand, three hundred four".