454439671109 has 2 divisors, whose sum is σ = 454439671110. Its totient is φ = 454439671108.

The previous prime is 454439671093. The next prime is 454439671121. The reversal of 454439671109 is 901176934454.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 405390710209 + 49048960900 = 636703^2 + 221470^2 .

It is a cyclic number.

It is not a de Polignac number, because 454439671109 - 2⁴ = 454439671093 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 (454439671159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227219835554 + 227219835555.

It is an arithmetic number, because the mean of its divisors is an integer number (227219835555).

Almost surely, 2^454439671109 is an apocalyptic number.

It is an amenable number.

454439671109 is a deficient number, since it is larger than the sum of its proper divisors (1).

454439671109 is an equidigital number, since it uses as much as digits as its factorization.

454439671109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 454439671109 in words is "four hundred fifty-four billion, four hundred thirty-nine million, six hundred seventy-one thousand, one hundred nine".