21411412424 has 8 divisors (see below), whose sum is σ = 40146398310. Its totient is φ = 10705706208.

The previous prime is 21411412409. The next prime is 21411412427. The reversal of 21411412424 is 42421411412.

It can be written as a sum of positive squares in only one way, i.e., 18983879524 + 2427532900 = 137782^2 + 49270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 21411412393 and 21411412402.

It is not an unprimeable number, because it can be changed into a prime (21411412427) 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 as a sum of consecutive naturals, namely, 1338213269 + ... + 1338213284.

Almost surely, 2^21411412424 is an apocalyptic number.

It is an amenable number.

21411412424 is a deficient number, since it is larger than the sum of its proper divisors (18734985886).

21411412424 is a wasteful number, since it uses less digits than its factorization.

21411412424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676426559 (or 2676426555 counting only the distinct ones).

The product of its digits is 2048, while the sum is 26.

Adding to 21411412424 its reverse (42421411412), we get a palindrome (63832823836).

The spelling of 21411412424 in words is "twenty-one billion, four hundred eleven million, four hundred twelve thousand, four hundred twenty-four".