21411411432 has 32 divisors (see below), whose sum is σ = 53837952480. Its totient is φ = 7095880640.

The previous prime is 21411411407. The next prime is 21411411451. The reversal of 21411411432 is 23411411412.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2574294 + ... + 2582597.

It is an arithmetic number, because the mean of its divisors is an integer number (1682436015).

Almost surely, 2^21411411432 is an apocalyptic number.

It is an amenable number.

21411411432 is an abundant number, since it is smaller than the sum of its proper divisors (32426541048).

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

21411411432 is a wasteful number, since it uses less digits than its factorization.

21411411432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5157073 (or 5157069 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

Adding to 21411411432 its reverse (23411411412), we get a palindrome (44822822844).

The spelling of 21411411432 in words is "twenty-one billion, four hundred eleven million, four hundred eleven thousand, four hundred thirty-two".