347135020405 has 4 divisors (see below), whose sum is σ = 416562024492. Its totient is φ = 277708016320.

The previous prime is 347135020399. The next prime is 347135020429. The reversal of 347135020405 is 504020531743.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 185214893956 + 161920126449 = 430366^2 + 402393^2 .

It is a de Polignac number, because none of the positive numbers 2^k-347135020405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34713502036 + ... + 34713502045.

It is an arithmetic number, because the mean of its divisors is an integer number (104140506123).

Almost surely, 2^347135020405 is an apocalyptic number.

It is an amenable number.

347135020405 is a deficient number, since it is larger than the sum of its proper divisors (69427004087).

347135020405 is an equidigital number, since it uses as much as digits as its factorization.

347135020405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69427004086.

The product of its (nonzero) digits is 50400, while the sum is 34.

The spelling of 347135020405 in words is "three hundred forty-seven billion, one hundred thirty-five million, twenty thousand, four hundred five".