343355327989 has 2 divisors, whose sum is σ = 343355327990. Its totient is φ = 343355327988.

The previous prime is 343355327977. The next prime is 343355328031. The reversal of 343355327989 is 989723553343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343328027364 + 27300625 = 585942^2 + 5225^2 .

It is a cyclic number.

It is not a de Polignac number, because 343355327989 - 2¹⁵ = 343355295221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343355327389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171677663994 + 171677663995.

It is an arithmetic number, because the mean of its divisors is an integer number (171677663995).

Almost surely, 2^343355327989 is an apocalyptic number.

It is an amenable number.

343355327989 is a deficient number, since it is larger than the sum of its proper divisors (1).

343355327989 is an equidigital number, since it uses as much as digits as its factorization.

343355327989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73483200, while the sum is 61.

The spelling of 343355327989 in words is "three hundred forty-three billion, three hundred fifty-five million, three hundred twenty-seven thousand, nine hundred eighty-nine".