454443434254109 has 2 divisors, whose sum is σ = 454443434254110. Its totient is φ = 454443434254108.

The previous prime is 454443434254099. The next prime is 454443434254129. The reversal of 454443434254109 is 901452434344454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290007616752100 + 164435817502009 = 17029610^2 + 12823253^2 .

It is a cyclic number.

It is not a de Polignac number, because 454443434254109 - 2¹⁶ = 454443434188573 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454443434254129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227221717127054 + 227221717127055.

It is an arithmetic number, because the mean of its divisors is an integer number (227221717127055).

Almost surely, 2^{454443434254109} is an apocalyptic number.

It is an amenable number.

454443434254109 is a deficient number, since it is larger than the sum of its proper divisors (1).

454443434254109 is an equidigital number, since it uses as much as digits as its factorization.

454443434254109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 66355200, while the sum is 56.

The spelling of 454443434254109 in words is "four hundred fifty-four trillion, four hundred forty-three billion, four hundred thirty-four million, two hundred fifty-four thousand, one hundred nine".