21044314726207 has 2 divisors, whose sum is σ = 21044314726208. Its totient is φ = 21044314726206.

The previous prime is 21044314726091. The next prime is 21044314726213. The reversal of 21044314726207 is 70262741344012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21044314726207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21044314726277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10522157363103 + 10522157363104.

It is an arithmetic number, because the mean of its divisors is an integer number (10522157363104).

Almost surely, 2^{21044314726207} is an apocalyptic number.

21044314726207 is a deficient number, since it is larger than the sum of its proper divisors (1).

21044314726207 is an equidigital number, since it uses as much as digits as its factorization.

21044314726207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 43.

The spelling of 21044314726207 in words is "twenty-one trillion, forty-four billion, three hundred fourteen million, seven hundred twenty-six thousand, two hundred seven".