345545583523841 has 2 divisors, whose sum is σ = 345545583523842. Its totient is φ = 345545583523840.

The previous prime is 345545583523759. The next prime is 345545583523849. The reversal of 345545583523841 is 148325385545543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248706777793600 + 96838805730241 = 15770440^2 + 9840671^2 .

It is an emirp because it is prime and its reverse (148325385545543) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345545583523841 is a prime.

It is not a weakly prime, because it can be changed into another prime (345545583523849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172772791761920 + 172772791761921.

It is an arithmetic number, because the mean of its divisors is an integer number (172772791761921).

Almost surely, 2^{345545583523841} is an apocalyptic number.

It is an amenable number.

345545583523841 is a deficient number, since it is larger than the sum of its proper divisors (1).

345545583523841 is an equidigital number, since it uses as much as digits as its factorization.

345545583523841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200000, while the sum is 65.

The spelling of 345545583523841 in words is "three hundred forty-five trillion, five hundred forty-five billion, five hundred eighty-three million, five hundred twenty-three thousand, eight hundred forty-one".