998224256371 has 2 divisors, whose sum is σ = 998224256372. Its totient is φ = 998224256370.

The previous prime is 998224256369. The next prime is 998224256389. The reversal of 998224256371 is 173652422899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998224256371 - 2¹ = 998224256369 is a prime.

Together with 998224256369, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (998224250371) 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, 499112128185 + 499112128186.

It is an arithmetic number, because the mean of its divisors is an integer number (499112128186).

Almost surely, 2^998224256371 is an apocalyptic number.

998224256371 is a deficient number, since it is larger than the sum of its proper divisors (1).

998224256371 is an equidigital number, since it uses as much as digits as its factorization.

998224256371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 58.

The spelling of 998224256371 in words is "nine hundred ninety-eight billion, two hundred twenty-four million, two hundred fifty-six thousand, three hundred seventy-one".