21832273152 has 432 divisors, whose sum is σ = 68874624000. Its totient is φ = 6629216256.

The previous prime is 21832273121. The next prime is 21832273163. The reversal of 21832273152 is 25137223812.

21832273152 is a `hidden beast` number, since 2 + 18 + 322 + 7 + 315 + 2 = 666.

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 47 ways as a sum of consecutive naturals, for example, 204039883 + ... + 204039989.

It is an arithmetic number, because the mean of its divisors is an integer number (159432000).

Almost surely, 2^21832273152 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 21832273152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34437312000).

21832273152 is an abundant number, since it is smaller than the sum of its proper divisors (47042350848).

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

21832273152 is a wasteful number, since it uses less digits than its factorization.

21832273152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 269 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

Adding to 21832273152 its reverse (25137223812), we get a palindrome (46969496964).

The spelling of 21832273152 in words is "twenty-one billion, eight hundred thirty-two million, two hundred seventy-three thousand, one hundred fifty-two".