2840745738169 has 2 divisors, whose sum is σ = 2840745738170. Its totient is φ = 2840745738168.

The previous prime is 2840745738167. The next prime is 2840745738203. The reversal of 2840745738169 is 9618375470482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2228416012944 + 612329725225 = 1492788^2 + 782515^2 .

It is a cyclic number.

It is not a de Polignac number, because 2840745738169 - 2¹ = 2840745738167 is a prime.

It is a super-2 number, since 2×2840745738169² (a number of 26 digits) contains 22 as substring.

Together with 2840745738167, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2840745738169.

It is not a weakly prime, because it can be changed into another prime (2840745738163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1420372869084 + 1420372869085.

It is an arithmetic number, because the mean of its divisors is an integer number (1420372869085).

It is a 1-persistent number, because it is pandigital, but 2⋅2840745738169 = 5681491476338 is not.

Almost surely, 2^{2840745738169} is an apocalyptic number.

It is an amenable number.

2840745738169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2840745738169 is an equidigital number, since it uses as much as digits as its factorization.

2840745738169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81285120, while the sum is 64.

The spelling of 2840745738169 in words is "two trillion, eight hundred forty billion, seven hundred forty-five million, seven hundred thirty-eight thousand, one hundred sixty-nine".