345390008069 has 2 divisors, whose sum is σ = 345390008070. Its totient is φ = 345390008068.

The previous prime is 345390008039. The next prime is 345390008077. The reversal of 345390008069 is 960800093543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216516187969 + 128873820100 = 465313^2 + 358990^2 .

It is a cyclic number.

It is not a de Polignac number, because 345390008069 - 2²⁸ = 345121572613 is a prime.

It is a super-2 number, since 2×345390008069² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345390008039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172695004034 + 172695004035.

It is an arithmetic number, because the mean of its divisors is an integer number (172695004035).

Almost surely, 2^345390008069 is an apocalyptic number.

It is an amenable number.

345390008069 is a deficient number, since it is larger than the sum of its proper divisors (1).

345390008069 is an equidigital number, since it uses as much as digits as its factorization.

345390008069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 345390008069 in words is "three hundred forty-five billion, three hundred ninety million, eight thousand, sixty-nine".