342405626504243 has 16 divisors (see below), whose sum is σ = 347108669214720. Its totient is φ = 337734079423776.

The previous prime is 342405626504213. The next prime is 342405626504261.

342405626504243 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 342405626504243 - 2¹⁰ = 342405626503219 is a prime.

It is a super-2 number, since 2×342405626504243² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342405626504191 and 342405626504200.

It is not an unprimeable number, because it can be changed into a prime (342405626504203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665617988 + ... + 666132206.

It is an arithmetic number, because the mean of its divisors is an integer number (21694291825920).

Almost surely, 2^{342405626504243} is an apocalyptic number.

342405626504243 is a deficient number, since it is larger than the sum of its proper divisors (4703042710477).

342405626504243 is a wasteful number, since it uses less digits than its factorization.

342405626504243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544826.

The product of its (nonzero) digits is 16588800, while the sum is 50.

The spelling of 342405626504243 in words is "three hundred forty-two trillion, four hundred five billion, six hundred twenty-six million, five hundred four thousand, two hundred forty-three".