2018959642769 has 2 divisors, whose sum is σ = 2018959642770. Its totient is φ = 2018959642768.

The previous prime is 2018959642717. The next prime is 2018959642771. The reversal of 2018959642769 is 9672469598102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1986938329744 + 32021313025 = 1409588^2 + 178945^2 .

It is a cyclic number.

It is not a de Polignac number, because 2018959642769 - 2¹² = 2018959638673 is a prime.

It is a super-2 number, since 2×2018959642769² (a number of 25 digits) contains 22 as substring.

Together with 2018959642771, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2018959642699 and 2018959642708.

It is not a weakly prime, because it can be changed into another prime (2018959642669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009479821384 + 1009479821385.

It is an arithmetic number, because the mean of its divisors is an integer number (1009479821385).

Almost surely, 2^{2018959642769} is an apocalyptic number.

It is an amenable number.

2018959642769 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018959642769 is an equidigital number, since it uses as much as digits as its factorization.

2018959642769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117573120, while the sum is 68.

The spelling of 2018959642769 in words is "two trillion, eighteen billion, nine hundred fifty-nine million, six hundred forty-two thousand, seven hundred sixty-nine".