21044110485 has 8 divisors (see below), whose sum is σ = 33670576800. Its totient is φ = 11223525584.

The previous prime is 21044110471. The next prime is 21044110487. The reversal of 21044110485 is 58401144012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21044110485 - 2⁵ = 21044110453 is a prime.

It is a super-2 number, since 2×21044110485² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21044110487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701470335 + ... + 701470364.

It is an arithmetic number, because the mean of its divisors is an integer number (4208822100).

Almost surely, 2^21044110485 is an apocalyptic number.

It is an amenable number.

21044110485 is a deficient number, since it is larger than the sum of its proper divisors (12626466315).

21044110485 is a wasteful number, since it uses less digits than its factorization.

21044110485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402940707.

The product of its (nonzero) digits is 5120, while the sum is 30.

Adding to 21044110485 its reverse (58401144012), we get a palindrome (79445254497).

The spelling of 21044110485 in words is "twenty-one billion, forty-four million, one hundred ten thousand, four hundred eighty-five".