2018959642717 has 2 divisors, whose sum is σ = 2018959642718. Its totient is φ = 2018959642716.

The previous prime is 2018959642669. The next prime is 2018959642769. The reversal of 2018959642717 is 7172469598102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1844324247481 + 174635395236 = 1358059^2 + 417894^2 .

It is a cyclic number.

It is not a de Polignac number, because 2018959642717 - 2²⁷ = 2018825424989 is a prime.

It is a super-2 number, since 2×2018959642717² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2018959642787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009479821358 + 1009479821359.

It is an arithmetic number, because the mean of its divisors is an integer number (1009479821359).

Almost surely, 2^{2018959642717} is an apocalyptic number.

It is an amenable number.

2018959642717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018959642717 is an equidigital number, since it uses as much as digits as its factorization.

2018959642717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 2018959642717 in words is "two trillion, eighteen billion, nine hundred fifty-nine million, six hundred forty-two thousand, seven hundred seventeen".