194000648899 has 2 divisors, whose sum is σ = 194000648900. Its totient is φ = 194000648898.

The previous prime is 194000648867. The next prime is 194000648923. The reversal of 194000648899 is 998846000491.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (998846000491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194000648899 - 2⁵ = 194000648867 is a prime.

It is not a weakly prime, because it can be changed into another prime (194000648099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97000324449 + 97000324450.

It is an arithmetic number, because the mean of its divisors is an integer number (97000324450).

Almost surely, 2^194000648899 is an apocalyptic number.

194000648899 is a deficient number, since it is larger than the sum of its proper divisors (1).

194000648899 is an equidigital number, since it uses as much as digits as its factorization.

194000648899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 58.

The spelling of 194000648899 in words is "one hundred ninety-four billion, six hundred forty-eight thousand, eight hundred ninety-nine".