200018027917 has 2 divisors, whose sum is σ = 200018027918. Its totient is φ = 200018027916.

The previous prime is 200018027873. The next prime is 200018027921. The reversal of 200018027917 is 719720810002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189324192996 + 10693834921 = 435114^2 + 103411^2 .

It is a cyclic number.

It is not a de Polignac number, because 200018027917 - 2¹⁹ = 200017503629 is a prime.

It is a super-2 number, since 2×200018027917² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200018027017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100009013958 + 100009013959.

It is an arithmetic number, because the mean of its divisors is an integer number (100009013959).

Almost surely, 2^200018027917 is an apocalyptic number.

It is an amenable number.

200018027917 is a deficient number, since it is larger than the sum of its proper divisors (1).

200018027917 is an equidigital number, since it uses as much as digits as its factorization.

200018027917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 37.

Adding to 200018027917 its reverse (719720810002), we get a palindrome (919738837919).

The spelling of 200018027917 in words is "two hundred billion, eighteen million, twenty-seven thousand, nine hundred seventeen".