98686143911911 has 2 divisors, whose sum is σ = 98686143911912. Its totient is φ = 98686143911910.

The previous prime is 98686143911897. The next prime is 98686143911941. The reversal of 98686143911911 is 11911934168689.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98686143911911 - 2³¹ = 98683996428263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98686143911941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49343071955955 + 49343071955956.

It is an arithmetic number, because the mean of its divisors is an integer number (49343071955956).

Almost surely, 2^{98686143911911} is an apocalyptic number.

98686143911911 is a deficient number, since it is larger than the sum of its proper divisors (1).

98686143911911 is an equidigital number, since it uses as much as digits as its factorization.

98686143911911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20155392, while the sum is 67.

The spelling of 98686143911911 in words is "ninety-eight trillion, six hundred eighty-six billion, one hundred forty-three million, nine hundred eleven thousand, nine hundred eleven".