21443097060 has 384 divisors, whose sum is σ = 86046105600. Its totient is φ = 4301821440.

The previous prime is 21443097059. The next prime is 21443097077. The reversal of 21443097060 is 6079034412.

21443097060 is a `hidden beast` number, since 214 + 430 + 9 + 7 + 0 + 6 + 0 = 666.

It is a super-3 number, since 3×21443097060³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1196929 + ... + 1214711.

It is an arithmetic number, because the mean of its divisors is an integer number (224078400).

Almost surely, 2^21443097060 is an apocalyptic number.

21443097060 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 21443097060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43023052800).

21443097060 is an abundant number, since it is smaller than the sum of its proper divisors (64603008540).

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

21443097060 is a wasteful number, since it uses less digits than its factorization.

21443097060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17848 (or 17840 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 21443097060 in words is "twenty-one billion, four hundred forty-three million, ninety-seven thousand, sixty".