345326727623543 has 4 divisors (see below), whose sum is σ = 345332097992928. Its totient is φ = 345321357254160.

The previous prime is 345326727623509. The next prime is 345326727623557.

345326727623543 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345326727623543 - 2²² = 345326723429239 is a prime.

It is a super-2 number, since 2×345326727623543² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345326727623743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2685088238 + ... + 2685216843.

It is an arithmetic number, because the mean of its divisors is an integer number (86333024498232).

Almost surely, 2^{345326727623543} is an apocalyptic number.

345326727623543 is a deficient number, since it is larger than the sum of its proper divisors (5370369385).

345326727623543 is an equidigital number, since it uses as much as digits as its factorization.

345326727623543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5370369384.

The product of its digits is 457228800, while the sum is 62.

The spelling of 345326727623543 in words is "three hundred forty-five trillion, three hundred twenty-six billion, seven hundred twenty-seven million, six hundred twenty-three thousand, five hundred forty-three".