21041073459 has 40 divisors (see below), whose sum is σ = 36414127200. Its totient is φ = 11858742144.

The previous prime is 21041073373. The next prime is 21041073467. The reversal of 21041073459 is 95437014012.

It is not a de Polignac number, because 21041073459 - 2⁹ = 21041072947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21041078459) 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 39 ways as a sum of consecutive naturals, for example, 212784 + ... + 295565.

It is an arithmetic number, because the mean of its divisors is an integer number (910353180).

Almost surely, 2^21041073459 is an apocalyptic number.

21041073459 is a deficient number, since it is larger than the sum of its proper divisors (15373053741).

21041073459 is an equidigital number, since it uses as much as digits as its factorization.

21041073459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508441 (or 508432 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 21041073459 in words is "twenty-one billion, forty-one million, seventy-three thousand, four hundred fifty-nine".