194399502907 has 2 divisors, whose sum is σ = 194399502908. Its totient is φ = 194399502906.

The previous prime is 194399502887. The next prime is 194399502949. The reversal of 194399502907 is 709205993491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 194399502907 - 2⁷ = 194399502779 is a prime.

It is not a weakly prime, because it can be changed into another prime (194399502007) 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, 97199751453 + 97199751454.

It is an arithmetic number, because the mean of its divisors is an integer number (97199751454).

Almost surely, 2^194399502907 is an apocalyptic number.

194399502907 is a deficient number, since it is larger than the sum of its proper divisors (1).

194399502907 is an equidigital number, since it uses as much as digits as its factorization.

194399502907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5511240, while the sum is 58.

The spelling of 194399502907 in words is "one hundred ninety-four billion, three hundred ninety-nine million, five hundred two thousand, nine hundred seven".