98664786281 has 2 divisors, whose sum is σ = 98664786282. Its totient is φ = 98664786280.

The previous prime is 98664786257. The next prime is 98664786299. The reversal of 98664786281 is 18268746689.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97353984256 + 1310802025 = 312016^2 + 36205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98664786281 is a prime.

It is a super-3 number, since 3×98664786281³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (98664786211) 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, 49332393140 + 49332393141.

It is an arithmetic number, because the mean of its divisors is an integer number (49332393141).

Almost surely, 2^98664786281 is an apocalyptic number.

It is an amenable number.

98664786281 is a deficient number, since it is larger than the sum of its proper divisors (1).

98664786281 is an equidigital number, since it uses as much as digits as its factorization.

98664786281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55738368, while the sum is 65.

The spelling of 98664786281 in words is "ninety-eight billion, six hundred sixty-four million, seven hundred eighty-six thousand, two hundred eighty-one".