21414435235 has 8 divisors (see below), whose sum is σ = 25699350096. Its totient is φ = 17130196320.

The previous prime is 21414435221. The next prime is 21414435247. The reversal of 21414435235 is 53253441412.

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

It is a de Polignac number, because none of the positive numbers 2^k-21414435235 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21414435235.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96456 + ... + 228325.

It is an arithmetic number, because the mean of its divisors is an integer number (3212418762).

Almost surely, 2^21414435235 is an apocalyptic number.

21414435235 is a deficient number, since it is larger than the sum of its proper divisors (4284914861).

21414435235 is a wasteful number, since it uses less digits than its factorization.

21414435235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337973.

The product of its digits is 57600, while the sum is 34.

Adding to 21414435235 its reverse (53253441412), we get a palindrome (74667876647).

The spelling of 21414435235 in words is "twenty-one billion, four hundred fourteen million, four hundred thirty-five thousand, two hundred thirty-five".