98775510289 has 2 divisors, whose sum is σ = 98775510290. Its totient is φ = 98775510288.

The previous prime is 98775510283. The next prime is 98775510307. The reversal of 98775510289 is 98201557789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77279552064 + 21495958225 = 277992^2 + 146615^2 .

It is an emirp because it is prime and its reverse (98201557789) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98775510289 is a prime.

It is not a weakly prime, because it can be changed into another prime (98775510283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49387755144 + 49387755145.

It is an arithmetic number, because the mean of its divisors is an integer number (49387755145).

Almost surely, 2^98775510289 is an apocalyptic number.

It is an amenable number.

98775510289 is a deficient number, since it is larger than the sum of its proper divisors (1).

98775510289 is an equidigital number, since it uses as much as digits as its factorization.

98775510289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12700800, while the sum is 61.

The spelling of 98775510289 in words is "ninety-eight billion, seven hundred seventy-five million, five hundred ten thousand, two hundred eighty-nine".