2000018198917 has 2 divisors, whose sum is σ = 2000018198918. Its totient is φ = 2000018198916.

The previous prime is 2000018198903. The next prime is 2000018198953. The reversal of 2000018198917 is 7198918100002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1362015038916 + 638003160001 = 1167054^2 + 798751^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000018198917 - 2³⁹ = 1450262385029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000018198957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000009099458 + 1000009099459.

It is an arithmetic number, because the mean of its divisors is an integer number (1000009099459).

Almost surely, 2^{2000018198917} is an apocalyptic number.

It is an amenable number.

2000018198917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000018198917 is an equidigital number, since it uses as much as digits as its factorization.

2000018198917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 46.

The spelling of 2000018198917 in words is "two trillion, eighteen million, one hundred ninety-eight thousand, nine hundred seventeen".