21362465967643 has 2 divisors, whose sum is σ = 21362465967644. Its totient is φ = 21362465967642.

The previous prime is 21362465967629. The next prime is 21362465967649. The reversal of 21362465967643 is 34676956426312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21362465967643 - 2²⁹ = 21361929096731 is a prime.

It is not a weakly prime, because it can be changed into another prime (21362465967649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10681232983821 + 10681232983822.

It is an arithmetic number, because the mean of its divisors is an integer number (10681232983822).

Almost surely, 2^{21362465967643} is an apocalyptic number.

21362465967643 is a deficient number, since it is larger than the sum of its proper divisors (1).

21362465967643 is an equidigital number, since it uses as much as digits as its factorization.

21362465967643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 235146240, while the sum is 64.

The spelling of 21362465967643 in words is "twenty-one trillion, three hundred sixty-two billion, four hundred sixty-five million, nine hundred sixty-seven thousand, six hundred forty-three".