345425643223 has 2 divisors, whose sum is σ = 345425643224. Its totient is φ = 345425643222.

The previous prime is 345425643181. The next prime is 345425643239. The reversal of 345425643223 is 322346524543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345425643223 - 2¹⁷ = 345425512151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345425643223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345425643293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172712821611 + 172712821612.

It is an arithmetic number, because the mean of its divisors is an integer number (172712821612).

Almost surely, 2^345425643223 is an apocalyptic number.

345425643223 is a deficient number, since it is larger than the sum of its proper divisors (1).

345425643223 is an equidigital number, since it uses as much as digits as its factorization.

345425643223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2073600, while the sum is 43.

It can be divided in two parts, 34542 and 5643223, that added together give a palindrome (5677765).

The spelling of 345425643223 in words is "three hundred forty-five billion, four hundred twenty-five million, six hundred forty-three thousand, two hundred twenty-three".