345518573441 has 2 divisors, whose sum is σ = 345518573442. Its totient is φ = 345518573440.

The previous prime is 345518573437. The next prime is 345518573489. The reversal of 345518573441 is 144375815543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269381760400 + 76136813041 = 519020^2 + 275929^2 .

It is an emirp because it is prime and its reverse (144375815543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345518573441 - 2² = 345518573437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345518573441.

It is not a weakly prime, because it can be changed into another prime (345518573941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172759286720 + 172759286721.

It is an arithmetic number, because the mean of its divisors is an integer number (172759286721).

Almost surely, 2^345518573441 is an apocalyptic number.

It is an amenable number.

345518573441 is a deficient number, since it is larger than the sum of its proper divisors (1).

345518573441 is an equidigital number, since it uses as much as digits as its factorization.

345518573441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032000, while the sum is 50.

The spelling of 345518573441 in words is "three hundred forty-five billion, five hundred eighteen million, five hundred seventy-three thousand, four hundred forty-one".