194136019043 has 2 divisors, whose sum is σ = 194136019044. Its totient is φ = 194136019042.

The previous prime is 194136019031. The next prime is 194136019061. The reversal of 194136019043 is 340910631491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 194136019043 - 2⁴ = 194136019027 is a prime.

It is not a weakly prime, because it can be changed into another prime (194136049043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97068009521 + 97068009522.

It is an arithmetic number, because the mean of its divisors is an integer number (97068009522).

Almost surely, 2^194136019043 is an apocalyptic number.

194136019043 is a deficient number, since it is larger than the sum of its proper divisors (1).

194136019043 is an equidigital number, since it uses as much as digits as its factorization.

194136019043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 194136019043 in words is "one hundred ninety-four billion, one hundred thirty-six million, nineteen thousand, forty-three".