21483748000 has 576 divisors, whose sum is σ = 65740356864. Its totient is φ = 6800640000.

The previous prime is 21483747997. The next prime is 21483748007. The reversal of 21483748000 is 84738412.

It is not an unprimeable number, because it can be changed into a prime (21483748007) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 302587965 + ... + 302588035.

It is an arithmetic number, because the mean of its divisors is an integer number (114132564).

Almost surely, 2^21483748000 is an apocalyptic number.

21483748000 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 21483748000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32870178432).

21483748000 is an abundant number, since it is smaller than the sum of its proper divisors (44256608864).

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

21483748000 is a wasteful number, since it uses less digits than its factorization.

21483748000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The spelling of 21483748000 in words is "twenty-one billion, four hundred eighty-three million, seven hundred forty-eight thousand".