198363825799 has 2 divisors, whose sum is σ = 198363825800. Its totient is φ = 198363825798.

The previous prime is 198363825791. The next prime is 198363825809. The reversal of 198363825799 is 997528363891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198363825799 - 2³ = 198363825791 is a prime.

It is a zygodrome in base 5.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198363825791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99181912899 + 99181912900.

It is an arithmetic number, because the mean of its divisors is an integer number (99181912900).

Almost surely, 2^198363825799 is an apocalyptic number.

198363825799 is a deficient number, since it is larger than the sum of its proper divisors (1).

198363825799 is an equidigital number, since it uses as much as digits as its factorization.

198363825799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176359680, while the sum is 70.

The spelling of 198363825799 in words is "one hundred ninety-eight billion, three hundred sixty-three million, eight hundred twenty-five thousand, seven hundred ninety-nine".