98585617831 has 2 divisors, whose sum is σ = 98585617832. Its totient is φ = 98585617830.

The previous prime is 98585617751. The next prime is 98585617873. The reversal of 98585617831 is 13871658589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98585617831 - 2⁷ = 98585617703 is a prime.

It is a super-2 number, since 2×98585617831² (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 98585617831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98585617331) 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, 49292808915 + 49292808916.

It is an arithmetic number, because the mean of its divisors is an integer number (49292808916).

Almost surely, 2^98585617831 is an apocalyptic number.

98585617831 is a deficient number, since it is larger than the sum of its proper divisors (1).

98585617831 is an equidigital number, since it uses as much as digits as its factorization.

98585617831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14515200, while the sum is 61.

The spelling of 98585617831 in words is "ninety-eight billion, five hundred eighty-five million, six hundred seventeen thousand, eight hundred thirty-one".