342439142618 has 4 divisors (see below), whose sum is σ = 513658713930. Its totient is φ = 171219571308.

The previous prime is 342439142587. The next prime is 342439142627. The reversal of 342439142618 is 816241934243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 816241934243 = 2347 ⋅347780969.

It can be written as a sum of positive squares in only one way, i.e., 333144832969 + 9294309649 = 577187^2 + 96407^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85609785653 + ... + 85609785656.

Almost surely, 2^342439142618 is an apocalyptic number.

342439142618 is a deficient number, since it is larger than the sum of its proper divisors (171219571312).

342439142618 is a wasteful number, since it uses less digits than its factorization.

342439142618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171219571311.

The product of its digits is 995328, while the sum is 47.

The spelling of 342439142618 in words is "three hundred forty-two billion, four hundred thirty-nine million, one hundred forty-two thousand, six hundred eighteen".