998188005307 has 2 divisors, whose sum is σ = 998188005308. Its totient is φ = 998188005306.

The previous prime is 998188005239. The next prime is 998188005317. The reversal of 998188005307 is 703500881899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 998188005307 - 2²⁷ = 998053787579 is a prime.

It is not a weakly prime, because it can be changed into another prime (998188005317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499094002653 + 499094002654.

It is an arithmetic number, because the mean of its divisors is an integer number (499094002654).

Almost surely, 2^998188005307 is an apocalyptic number.

998188005307 is a deficient number, since it is larger than the sum of its proper divisors (1).

998188005307 is an equidigital number, since it uses as much as digits as its factorization.

998188005307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 58.

The spelling of 998188005307 in words is "nine hundred ninety-eight billion, one hundred eighty-eight million, five thousand, three hundred seven".