342643666346243 has 4 divisors (see below), whose sum is σ = 342647542625760. Its totient is φ = 342639790066728.

The previous prime is 342643666346237. The next prime is 342643666346393.

342643666346243 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 342643666346243 - 2¹⁰ = 342643666345219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342643666306243) 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, 1938007163 + ... + 1938183956.

It is an arithmetic number, because the mean of its divisors is an integer number (85661885656440).

Almost surely, 2^{342643666346243} is an apocalyptic number.

342643666346243 is a deficient number, since it is larger than the sum of its proper divisors (3876279517).

342643666346243 is an equidigital number, since it uses as much as digits as its factorization.

342643666346243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3876279516.

The product of its digits is 644972544, while the sum is 62.

The spelling of 342643666346243 in words is "three hundred forty-two trillion, six hundred forty-three billion, six hundred sixty-six million, three hundred forty-six thousand, two hundred forty-three".