998917248011 has 2 divisors, whose sum is σ = 998917248012. Its totient is φ = 998917248010.

The previous prime is 998917247959. The next prime is 998917248041. The reversal of 998917248011 is 110842719899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 998917248011 - 2¹⁸ = 998916985867 is a prime.

It is a super-2 number, since 2×998917248011² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (998917248041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499458624005 + 499458624006.

It is an arithmetic number, because the mean of its divisors is an integer number (499458624006).

Almost surely, 2^998917248011 is an apocalyptic number.

998917248011 is a deficient number, since it is larger than the sum of its proper divisors (1).

998917248011 is an equidigital number, since it uses as much as digits as its factorization.

998917248011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 59.

The spelling of 998917248011 in words is "nine hundred ninety-eight billion, nine hundred seventeen million, two hundred forty-eight thousand, eleven".