98506065085789 has 2 divisors, whose sum is σ = 98506065085790. Its totient is φ = 98506065085788.

The previous prime is 98506065085697. The next prime is 98506065085829. The reversal of 98506065085789 is 98758056060589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97656552629689 + 849512456100 = 9882133^2 + 921690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98506065085789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98506065785789) 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, 49253032542894 + 49253032542895.

It is an arithmetic number, because the mean of its divisors is an integer number (49253032542895).

Almost surely, 2^{98506065085789} is an apocalyptic number.

It is an amenable number.

98506065085789 is a deficient number, since it is larger than the sum of its proper divisors (1).

98506065085789 is an equidigital number, since it uses as much as digits as its factorization.

98506065085789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368000, while the sum is 76.

The spelling of 98506065085789 in words is "ninety-eight trillion, five hundred six billion, sixty-five million, eighty-five thousand, seven hundred eighty-nine".