342643205727 has 16 divisors (see below), whose sum is σ = 534336384000. Its totient is φ = 216406234872.

The previous prime is 342643205717. The next prime is 342643205789. The reversal of 342643205727 is 727502346243.

342643205727 is a `hidden beast` number, since 3 + 42 + 6 + 4 + 32 + 0 + 572 + 7 = 666.

It is not a de Polignac number, because 342643205727 - 2⁴ = 342643205711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342643205717) 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, 333959727 + ... + 333960752.

It is an arithmetic number, because the mean of its divisors is an integer number (33396024000).

Almost surely, 2^342643205727 is an apocalyptic number.

342643205727 is a deficient number, since it is larger than the sum of its proper divisors (191693178273).

342643205727 is a wasteful number, since it uses less digits than its factorization.

342643205727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667920507 (or 667920501 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 45.

The spelling of 342643205727 in words is "three hundred forty-two billion, six hundred forty-three million, two hundred five thousand, seven hundred twenty-seven".