347221745347 has 2 divisors, whose sum is σ = 347221745348. Its totient is φ = 347221745346.

The previous prime is 347221745279. The next prime is 347221745369. The reversal of 347221745347 is 743547122743.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 347221745347 - 2⁷ = 347221745219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 347221745347.

It is not a weakly prime, because it can be changed into another prime (347221745447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173610872673 + 173610872674.

It is an arithmetic number, because the mean of its divisors is an integer number (173610872674).

Almost surely, 2^347221745347 is an apocalyptic number.

347221745347 is a deficient number, since it is larger than the sum of its proper divisors (1).

347221745347 is an equidigital number, since it uses as much as digits as its factorization.

347221745347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3951360, while the sum is 49.

The spelling of 347221745347 in words is "three hundred forty-seven billion, two hundred twenty-one million, seven hundred forty-five thousand, three hundred forty-seven".