998926359247 has 2 divisors, whose sum is σ = 998926359248. Its totient is φ = 998926359246.

The previous prime is 998926359187. The next prime is 998926359259. The reversal of 998926359247 is 742953629899.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998926359247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 998926359247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998926354247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499463179623 + 499463179624.

It is an arithmetic number, because the mean of its divisors is an integer number (499463179624).

Almost surely, 2^998926359247 is an apocalyptic number.

998926359247 is a deficient number, since it is larger than the sum of its proper divisors (1).

998926359247 is an equidigital number, since it uses as much as digits as its factorization.

998926359247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529079040, while the sum is 73.

The spelling of 998926359247 in words is "nine hundred ninety-eight billion, nine hundred twenty-six million, three hundred fifty-nine thousand, two hundred forty-seven".