2000017905797 has 2 divisors, whose sum is σ = 2000017905798. Its totient is φ = 2000017905796.

The previous prime is 2000017905737. The next prime is 2000017905799. The reversal of 2000017905797 is 7975097100002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1883923698721 + 116094207076 = 1372561^2 + 340726^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000017905797 - 2²⁰ = 2000016857221 is a prime.

Together with 2000017905799, 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 (2000017905799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000008952898 + 1000008952899.

It is an arithmetic number, because the mean of its divisors is an integer number (1000008952899).

Almost surely, 2^{2000017905797} is an apocalyptic number.

It is an amenable number.

2000017905797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000017905797 is an equidigital number, since it uses as much as digits as its factorization.

2000017905797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 277830, while the sum is 47.

The spelling of 2000017905797 in words is "two trillion, seventeen million, nine hundred five thousand, seven hundred ninety-seven".