21732382334848 has 64 divisors (see below), whose sum is σ = 44399649147840. Its totient is φ = 10589522944000.

The previous prime is 21732382334843. The next prime is 21732382334891. The reversal of 21732382334848 is 84843328323712.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 21732382334792 and 21732382334801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21732382334843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2508108 + ... + 7053748.

It is an arithmetic number, because the mean of its divisors is an integer number (693744517935).

Almost surely, 2^{21732382334848} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21732382334848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22199824573920).

21732382334848 is an abundant number, since it is smaller than the sum of its proper divisors (22667266812992).

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

21732382334848 is an equidigital number, since it uses as much as digits as its factorization.

21732382334848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4546607 (or 4546595 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 58.

The spelling of 21732382334848 in words is "twenty-one trillion, seven hundred thirty-two billion, three hundred eighty-two million, three hundred thirty-four thousand, eight hundred forty-eight".