98764671281 has 2 divisors, whose sum is σ = 98764671282. Its totient is φ = 98764671280.

The previous prime is 98764671263. The next prime is 98764671283. The reversal of 98764671281 is 18217646789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49658111281 + 49106560000 = 222841^2 + 221600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98764671281 is a prime.

It is a super-2 number, since 2×98764671281² (a number of 23 digits) contains 22 as substring.

Together with 98764671283, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98764671281.

It is not a weakly prime, because it can be changed into another prime (98764671283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49382335640 + 49382335641.

It is an arithmetic number, because the mean of its divisors is an integer number (49382335641).

Almost surely, 2^98764671281 is an apocalyptic number.

It is an amenable number.

98764671281 is a deficient number, since it is larger than the sum of its proper divisors (1).

98764671281 is an equidigital number, since it uses as much as digits as its factorization.

98764671281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 59.

The spelling of 98764671281 in words is "ninety-eight billion, seven hundred sixty-four million, six hundred seventy-one thousand, two hundred eighty-one".