2173834718417 has 2 divisors, whose sum is σ = 2173834718418. Its totient is φ = 2173834718416.

The previous prime is 2173834718369. The next prime is 2173834718431. The reversal of 2173834718417 is 7148174383712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2117537190976 + 56297527441 = 1455176^2 + 237271^2 .

It is a cyclic number.

It is not a de Polignac number, because 2173834718417 - 2⁶ = 2173834718353 is a prime.

It is not a weakly prime, because it can be changed into another prime (2173834718437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086917359208 + 1086917359209.

It is an arithmetic number, because the mean of its divisors is an integer number (1086917359209).

Almost surely, 2^{2173834718417} is an apocalyptic number.

It is an amenable number.

2173834718417 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173834718417 is an equidigital number, since it uses as much as digits as its factorization.

2173834718417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6322176, while the sum is 56.

The spelling of 2173834718417 in words is "two trillion, one hundred seventy-three billion, eight hundred thirty-four million, seven hundred eighteen thousand, four hundred seventeen".