444623176072109 has 2 divisors, whose sum is σ = 444623176072110. Its totient is φ = 444623176072108.

The previous prime is 444623176072001. The next prime is 444623176072189. The reversal of 444623176072109 is 901270671326444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 437947825403209 + 6675350668900 = 20927203^2 + 2583670^2 .

It is a cyclic number.

It is not a de Polignac number, because 444623176072109 - 2⁸ = 444623176071853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444623176072189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222311588036054 + 222311588036055.

It is an arithmetic number, because the mean of its divisors is an integer number (222311588036055).

Almost surely, 2^{444623176072109} is an apocalyptic number.

It is an amenable number.

444623176072109 is a deficient number, since it is larger than the sum of its proper divisors (1).

444623176072109 is an equidigital number, since it uses as much as digits as its factorization.

444623176072109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 444623176072109 in words is "four hundred forty-four trillion, six hundred twenty-three billion, one hundred seventy-six million, seventy-two thousand, one hundred nine".