21294183432192 has 480 divisors, whose sum is σ = 62620071058944. Its totient is φ = 6382878720000.

The previous prime is 21294183432169. The next prime is 21294183432209. The reversal of 21294183432192 is 29123438149212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23477599803 + ... + 23477600709.

Almost surely, 2^{21294183432192} is an apocalyptic number.

21294183432192 is a gapful number since it is divisible by the number (22) 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 21294183432192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31310035529472).

21294183432192 is an abundant number, since it is smaller than the sum of its proper divisors (41325887626752).

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

21294183432192 is a wasteful number, since it uses less digits than its factorization.

21294183432192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373 (or 1347 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The spelling of 21294183432192 in words is "twenty-one trillion, two hundred ninety-four billion, one hundred eighty-three million, four hundred thirty-two thousand, one hundred ninety-two".