198644924383 has 2 divisors, whose sum is σ = 198644924384. Its totient is φ = 198644924382.

The previous prime is 198644924377. The next prime is 198644924419. The reversal of 198644924383 is 383429446891.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198644924383 - 2²⁹ = 198108053471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198644924183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99322462191 + 99322462192.

It is an arithmetic number, because the mean of its divisors is an integer number (99322462192).

Almost surely, 2^198644924383 is an apocalyptic number.

198644924383 is a deficient number, since it is larger than the sum of its proper divisors (1).

198644924383 is an equidigital number, since it uses as much as digits as its factorization.

198644924383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35831808, while the sum is 61.

The spelling of 198644924383 in words is "one hundred ninety-eight billion, six hundred forty-four million, nine hundred twenty-four thousand, three hundred eighty-three".