98216774197 has 2 divisors, whose sum is σ = 98216774198. Its totient is φ = 98216774196.

The previous prime is 98216774141. The next prime is 98216774237. The reversal of 98216774197 is 79147761289.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94002946801 + 4213827396 = 306599^2 + 64914^2 .

It is a cyclic number.

It is not a de Polignac number, because 98216774197 - 2²³ = 98208385589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98216774497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49108387098 + 49108387099.

It is an arithmetic number, because the mean of its divisors is an integer number (49108387099).

Almost surely, 2^98216774197 is an apocalyptic number.

It is an amenable number.

98216774197 is a deficient number, since it is larger than the sum of its proper divisors (1).

98216774197 is an equidigital number, since it uses as much as digits as its factorization.

98216774197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10668672, while the sum is 61.

The spelling of 98216774197 in words is "ninety-eight billion, two hundred sixteen million, seven hundred seventy-four thousand, one hundred ninety-seven".