21467273472713 has 2 divisors, whose sum is σ = 21467273472714. Its totient is φ = 21467273472712.

The previous prime is 21467273472707. The next prime is 21467273472793. The reversal of 21467273472713 is 31727437276412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21405131458624 + 62142014089 = 4626568^2 + 249283^2 .

It is a cyclic number.

It is not a de Polignac number, because 21467273472713 - 2⁶ = 21467273472649 is a prime.

It is not a weakly prime, because it can be changed into another prime (21467273472793) 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, 10733636736356 + 10733636736357.

It is an arithmetic number, because the mean of its divisors is an integer number (10733636736357).

Almost surely, 2^{21467273472713} is an apocalyptic number.

It is an amenable number.

21467273472713 is a deficient number, since it is larger than the sum of its proper divisors (1).

21467273472713 is an equidigital number, since it uses as much as digits as its factorization.

21467273472713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16595712, while the sum is 56.

The spelling of 21467273472713 in words is "twenty-one trillion, four hundred sixty-seven billion, two hundred seventy-three million, four hundred seventy-two thousand, seven hundred thirteen".