354550205021009 has 2 divisors, whose sum is σ = 354550205021010. Its totient is φ = 354550205021008.

The previous prime is 354550205020933. The next prime is 354550205021039. The reversal of 354550205021009 is 900120502055453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335548208100625 + 19001996920384 = 18317975^2 + 4359128^2 .

It is a cyclic number.

It is not a de Polignac number, because 354550205021009 - 2²⁴ = 354550188243793 is a prime.

It is not a weakly prime, because it can be changed into another prime (354550205021039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177275102510504 + 177275102510505.

It is an arithmetic number, because the mean of its divisors is an integer number (177275102510505).

Almost surely, 2^{354550205021009} is an apocalyptic number.

It is an amenable number.

354550205021009 is a deficient number, since it is larger than the sum of its proper divisors (1).

354550205021009 is an equidigital number, since it uses as much as digits as its factorization.

354550205021009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 354550205021009 in words is "three hundred fifty-four trillion, five hundred fifty billion, two hundred five million, twenty-one thousand, nine".