142068539717 has 4 divisors (see below), whose sum is σ = 152996888940. Its totient is φ = 131140190496.

The previous prime is 142068539707. The next prime is 142068539719. The reversal of 142068539717 is 717935860241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 717935860241 = 663661 ⋅1081781.

It can be written as a sum of positive squares in 2 ways, for example, as 95536009921 + 46532529796 = 309089^2 + 215714^2 .

It is a cyclic number.

It is not a de Polignac number, because 142068539717 - 2⁸ = 142068539461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142068539719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5464174592 + ... + 5464174617.

It is an arithmetic number, because the mean of its divisors is an integer number (38249222235).

It is a 1-persistent number, because it is pandigital, but 2⋅142068539717 = 284137079434 is not.

Almost surely, 2^142068539717 is an apocalyptic number.

It is an amenable number.

142068539717 is a deficient number, since it is larger than the sum of its proper divisors (10928349223).

142068539717 is a wasteful number, since it uses less digits than its factorization.

142068539717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10928349222.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 142068539717 in words is "one hundred forty-two billion, sixty-eight million, five hundred thirty-nine thousand, seven hundred seventeen".