21416641463 has 32 divisors (see below), whose sum is σ = 26392025088. Its totient is φ = 16961011200.

The previous prime is 21416641403. The next prime is 21416641487. The reversal of 21416641463 is 36414661412.

It is not a de Polignac number, because 21416641463 - 2¹⁴ = 21416625079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21416641403) 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 31 ways as a sum of consecutive naturals, for example, 4142306 + ... + 4147472.

It is an arithmetic number, because the mean of its divisors is an integer number (824750784).

Almost surely, 2^21416641463 is an apocalyptic number.

21416641463 is a deficient number, since it is larger than the sum of its proper divisors (4975383625).

21416641463 is a wasteful number, since it uses less digits than its factorization.

21416641463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5823.

The product of its digits is 82944, while the sum is 38.

The spelling of 21416641463 in words is "twenty-one billion, four hundred sixteen million, six hundred forty-one thousand, four hundred sixty-three".