98663256761 has 2 divisors, whose sum is σ = 98663256762. Its totient is φ = 98663256760.

The previous prime is 98663256733. The next prime is 98663256803. The reversal of 98663256761 is 16765236689.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61414256761 + 37249000000 = 247819^2 + 193000^2 .

It is an emirp because it is prime and its reverse (16765236689) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98663256761 - 2⁶ = 98663256697 is a prime.

It is a super-2 number, since 2×98663256761² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 98663256761.

It is not a weakly prime, because it can be changed into another prime (98663256721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49331628380 + 49331628381.

It is an arithmetic number, because the mean of its divisors is an integer number (49331628381).

Almost surely, 2^98663256761 is an apocalyptic number.

It is an amenable number.

98663256761 is a deficient number, since it is larger than the sum of its proper divisors (1).

98663256761 is an equidigital number, since it uses as much as digits as its factorization.

98663256761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 59.

The spelling of 98663256761 in words is "ninety-eight billion, six hundred sixty-three million, two hundred fifty-six thousand, seven hundred sixty-one".