343851722647 has 2 divisors, whose sum is σ = 343851722648. Its totient is φ = 343851722646.

The previous prime is 343851722611. The next prime is 343851722651. The reversal of 343851722647 is 746227158343.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343851722647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 343851722594 and 343851722603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343851762647) by changing a digit.

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 as a sum of consecutive naturals, namely, 171925861323 + 171925861324.

It is an arithmetic number, because the mean of its divisors is an integer number (171925861324).

Almost surely, 2^343851722647 is an apocalyptic number.

343851722647 is a deficient number, since it is larger than the sum of its proper divisors (1).

343851722647 is an equidigital number, since it uses as much as digits as its factorization.

343851722647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6773760, while the sum is 52.

The spelling of 343851722647 in words is "three hundred forty-three billion, eight hundred fifty-one million, seven hundred twenty-two thousand, six hundred forty-seven".