998844318683 has 2 divisors, whose sum is σ = 998844318684. Its totient is φ = 998844318682.

The previous prime is 998844318629. The next prime is 998844318721. The reversal of 998844318683 is 386813448899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 998844318683 - 2²² = 998840124379 is a prime.

It is not a weakly prime, because it can be changed into another prime (998844338683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499422159341 + 499422159342.

It is an arithmetic number, because the mean of its divisors is an integer number (499422159342).

Almost surely, 2^998844318683 is an apocalyptic number.

998844318683 is a deficient number, since it is larger than the sum of its proper divisors (1).

998844318683 is an equidigital number, since it uses as much as digits as its factorization.

998844318683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 286654464, while the sum is 71.

The spelling of 998844318683 in words is "nine hundred ninety-eight billion, eight hundred forty-four million, three hundred eighteen thousand, six hundred eighty-three".