347473807909 has 2 divisors, whose sum is σ = 347473807910. Its totient is φ = 347473807908.

The previous prime is 347473807823. The next prime is 347473807927. The reversal of 347473807909 is 909708374743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315630476100 + 31843331809 = 561810^2 + 178447^2 .

It is a cyclic number.

It is not a de Polignac number, because 347473807909 - 2⁹ = 347473807397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (347473807999) 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, 173736903954 + 173736903955.

It is an arithmetic number, because the mean of its divisors is an integer number (173736903955).

Almost surely, 2^347473807909 is an apocalyptic number.

It is an amenable number.

347473807909 is a deficient number, since it is larger than the sum of its proper divisors (1).

347473807909 is an equidigital number, since it uses as much as digits as its factorization.

347473807909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32006016, while the sum is 61.

The spelling of 347473807909 in words is "three hundred forty-seven billion, four hundred seventy-three million, eight hundred seven thousand, nine hundred nine".