347145727613 has 4 divisors (see below), whose sum is σ = 347148739548. Its totient is φ = 347142715680.

The previous prime is 347145727603. The next prime is 347145727633. The reversal of 347145727613 is 316727541743.

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 103186785529 + 243958942084 = 321227^2 + 493922^2 .

It is a cyclic number.

It is not a de Polignac number, because 347145727613 - 2¹⁰ = 347145726589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347145727603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325906 + ... + 1565987.

It is an arithmetic number, because the mean of its divisors is an integer number (86787184887).

Almost surely, 2^347145727613 is an apocalyptic number.

It is an amenable number.

347145727613 is a deficient number, since it is larger than the sum of its proper divisors (3011935).

347145727613 is a wasteful number, since it uses less digits than its factorization.

347145727613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011934.

The product of its digits is 2963520, while the sum is 50.

The spelling of 347145727613 in words is "three hundred forty-seven billion, one hundred forty-five million, seven hundred twenty-seven thousand, six hundred thirteen".