345423602273 has 2 divisors, whose sum is σ = 345423602274. Its totient is φ = 345423602272.

The previous prime is 345423602243. The next prime is 345423602389. The reversal of 345423602273 is 372206324543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180040673344 + 165382928929 = 424312^2 + 406673^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345423602273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345423602273.

It is not a weakly prime, because it can be changed into another prime (345423602203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172711801136 + 172711801137.

It is an arithmetic number, because the mean of its divisors is an integer number (172711801137).

Almost surely, 2^345423602273 is an apocalyptic number.

It is an amenable number.

345423602273 is a deficient number, since it is larger than the sum of its proper divisors (1).

345423602273 is an equidigital number, since it uses as much as digits as its factorization.

345423602273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 41.

The spelling of 345423602273 in words is "three hundred forty-five billion, four hundred twenty-three million, six hundred two thousand, two hundred seventy-three".