998848331749 has 2 divisors, whose sum is σ = 998848331750. Its totient is φ = 998848331748.

The previous prime is 998848331717. The next prime is 998848331779. The reversal of 998848331749 is 947133848899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 751498272100 + 247350059649 = 866890^2 + 497343^2 .

It is a cyclic number.

It is not a de Polignac number, because 998848331749 - 2⁵ = 998848331717 is a prime.

It is a super-3 number, since 3×998848331749³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998848331779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499424165874 + 499424165875.

It is an arithmetic number, because the mean of its divisors is an integer number (499424165875).

Almost surely, 2^998848331749 is an apocalyptic number.

It is an amenable number.

998848331749 is a deficient number, since it is larger than the sum of its proper divisors (1).

998848331749 is an equidigital number, since it uses as much as digits as its factorization.

998848331749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376233984, while the sum is 73.

The spelling of 998848331749 in words is "nine hundred ninety-eight billion, eight hundred forty-eight million, three hundred thirty-one thousand, seven hundred forty-nine".