1740400620317 has 2 divisors, whose sum is σ = 1740400620318. Its totient is φ = 1740400620316.

The previous prime is 1740400620289. The next prime is 1740400620319. The reversal of 1740400620317 is 7130260040471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1484191539076 + 256209081241 = 1218274^2 + 506171^2 .

It is a cyclic number.

It is not a de Polignac number, because 1740400620317 - 2²⁰ = 1740399571741 is a prime.

Together with 1740400620319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1740400620319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 870200310158 + 870200310159.

It is an arithmetic number, because the mean of its divisors is an integer number (870200310159).

Almost surely, 2^{1740400620317} is an apocalyptic number.

It is an amenable number.

1740400620317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1740400620317 is an equidigital number, since it uses as much as digits as its factorization.

1740400620317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 35.

Adding to 1740400620317 its reverse (7130260040471), we get a palindrome (8870660660788).

The spelling of 1740400620317 in words is "one trillion, seven hundred forty billion, four hundred million, six hundred twenty thousand, three hundred seventeen".