142568345917 has 2 divisors, whose sum is σ = 142568345918. Its totient is φ = 142568345916.

The previous prime is 142568345897. The next prime is 142568345963. The reversal of 142568345917 is 719543865241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125267152761 + 17301193156 = 353931^2 + 131534^2 .

It is a cyclic number.

It is not a de Polignac number, because 142568345917 - 2¹⁵ = 142568313149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142568345977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71284172958 + 71284172959.

It is an arithmetic number, because the mean of its divisors is an integer number (71284172959).

Almost surely, 2^142568345917 is an apocalyptic number.

It is an amenable number.

142568345917 is a deficient number, since it is larger than the sum of its proper divisors (1).

142568345917 is an equidigital number, since it uses as much as digits as its factorization.

142568345917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 55.

The spelling of 142568345917 in words is "one hundred forty-two billion, five hundred sixty-eight million, three hundred forty-five thousand, nine hundred seventeen".