198415793843 has 2 divisors, whose sum is σ = 198415793844. Its totient is φ = 198415793842.

The previous prime is 198415793837. The next prime is 198415793951. The reversal of 198415793843 is 348397514891.

198415793843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198415793843 - 2²² = 198411599539 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (198415793803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99207896921 + 99207896922.

It is an arithmetic number, because the mean of its divisors is an integer number (99207896922).

Almost surely, 2^198415793843 is an apocalyptic number.

198415793843 is a deficient number, since it is larger than the sum of its proper divisors (1).

198415793843 is an equidigital number, since it uses as much as digits as its factorization.

198415793843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26127360, while the sum is 62.

The spelling of 198415793843 in words is "one hundred ninety-eight billion, four hundred fifteen million, seven hundred ninety-three thousand, eight hundred forty-three".