354442434209 has 2 divisors, whose sum is σ = 354442434210. Its totient is φ = 354442434208.

The previous prime is 354442434169. The next prime is 354442434253. The reversal of 354442434209 is 902434244453.

It is an a-pointer prime, because the next prime (354442434253) can be obtained adding 354442434209 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288076945984 + 66365488225 = 536728^2 + 257615^2 .

It is a cyclic number.

It is not a de Polignac number, because 354442434209 - 2¹⁶ = 354442368673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 354442434209.

It is not a weakly prime, because it can be changed into another prime (354442434289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177221217104 + 177221217105.

It is an arithmetic number, because the mean of its divisors is an integer number (177221217105).

Almost surely, 2^354442434209 is an apocalyptic number.

It is an amenable number.

354442434209 is a deficient number, since it is larger than the sum of its proper divisors (1).

354442434209 is an equidigital number, since it uses as much as digits as its factorization.

354442434209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 44.

The spelling of 354442434209 in words is "three hundred fifty-four billion, four hundred forty-two million, four hundred thirty-four thousand, two hundred nine".