347713256689 has 2 divisors, whose sum is σ = 347713256690. Its totient is φ = 347713256688.

The previous prime is 347713256567. The next prime is 347713256717. The reversal of 347713256689 is 986652317743.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 235799590464 + 111913666225 = 485592^2 + 334535^2 .

It is a cyclic number.

It is not a de Polignac number, because 347713256689 - 2²⁵ = 347679702257 is a prime.

It is not a weakly prime, because it can be changed into another prime (347713256489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173856628344 + 173856628345.

It is an arithmetic number, because the mean of its divisors is an integer number (173856628345).

Almost surely, 2^347713256689 is an apocalyptic number.

It is an amenable number.

347713256689 is a deficient number, since it is larger than the sum of its proper divisors (1).

347713256689 is an equidigital number, since it uses as much as digits as its factorization.

347713256689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45722880, while the sum is 61.

The spelling of 347713256689 in words is "three hundred forty-seven billion, seven hundred thirteen million, two hundred fifty-six thousand, six hundred eighty-nine".