21044433010410 has 128 divisors (see below), whose sum is σ = 59119030656000. Its totient is φ = 5312263922496.

The previous prime is 21044433010409. The next prime is 21044433010451. The reversal of 21044433010410 is 1401033444012.

21044433010410 is a `hidden beast` number, since 2 + 104 + 443 + 3 + 0 + 104 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4829509 + ... + 8087831.

It is an arithmetic number, because the mean of its divisors is an integer number (461867427000).

Almost surely, 2^{21044433010410} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21044433010410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29559515328000).

21044433010410 is an abundant number, since it is smaller than the sum of its proper divisors (38074597645590).

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

21044433010410 is a wasteful number, since it uses less digits than its factorization.

21044433010410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259617 (or 3259611 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 21044433010410 its reverse (1401033444012), we get a palindrome (22445466454422).

The spelling of 21044433010410 in words is "twenty-one trillion, forty-four billion, four hundred thirty-three million, ten thousand, four hundred ten".