345324423505 has 4 divisors (see below), whose sum is σ = 414389308212. Its totient is φ = 276259538800.

The previous prime is 345324423481. The next prime is 345324423571. The reversal of 345324423505 is 505324423543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505324423543 = 42013 ⋅12027811.

It can be written as a sum of positive squares in 2 ways, for example, as 48562055424 + 296762368081 = 220368^2 + 544759^2 .

It is not a de Polignac number, because 345324423505 - 2²³ = 345316034897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34532442346 + ... + 34532442355.

It is an arithmetic number, because the mean of its divisors is an integer number (103597327053).

Almost surely, 2^345324423505 is an apocalyptic number.

It is an amenable number.

345324423505 is a deficient number, since it is larger than the sum of its proper divisors (69064884707).

345324423505 is an equidigital number, since it uses as much as digits as its factorization.

345324423505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69064884706.

The product of its (nonzero) digits is 864000, while the sum is 40.

The spelling of 345324423505 in words is "three hundred forty-five billion, three hundred twenty-four million, four hundred twenty-three thousand, five hundred five".