345425672717 has 2 divisors, whose sum is σ = 345425672718. Its totient is φ = 345425672716.

The previous prime is 345425672699. The next prime is 345425672731. The reversal of 345425672717 is 717276524543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 303409282276 + 42016390441 = 550826^2 + 204979^2 .

It is a cyclic number.

It is not a de Polignac number, because 345425672717 - 2⁸ = 345425672461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345425672777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172712836358 + 172712836359.

It is an arithmetic number, because the mean of its divisors is an integer number (172712836359).

Almost surely, 2^345425672717 is an apocalyptic number.

It is an amenable number.

345425672717 is a deficient number, since it is larger than the sum of its proper divisors (1).

345425672717 is an equidigital number, since it uses as much as digits as its factorization.

345425672717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9878400, while the sum is 53.

The spelling of 345425672717 in words is "three hundred forty-five billion, four hundred twenty-five million, six hundred seventy-two thousand, seven hundred seventeen".