345348863989 has 2 divisors, whose sum is σ = 345348863990. Its totient is φ = 345348863988.

The previous prime is 345348863987. The next prime is 345348864067. The reversal of 345348863989 is 989368843543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257114914225 + 88233949764 = 507065^2 + 297042^2 .

It is a cyclic number.

It is not a de Polignac number, because 345348863989 - 2¹ = 345348863987 is a prime.

Together with 345348863987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345348863987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172674431994 + 172674431995.

It is an arithmetic number, because the mean of its divisors is an integer number (172674431995).

Almost surely, 2^345348863989 is an apocalyptic number.

It is an amenable number.

345348863989 is a deficient number, since it is larger than the sum of its proper divisors (1).

345348863989 is an equidigital number, since it uses as much as digits as its factorization.

345348863989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 537477120, while the sum is 70.

The spelling of 345348863989 in words is "three hundred forty-five billion, three hundred forty-eight million, eight hundred sixty-three thousand, nine hundred eighty-nine".