199701381907 has 2 divisors, whose sum is σ = 199701381908. Its totient is φ = 199701381906.

The previous prime is 199701381899. The next prime is 199701381941. The reversal of 199701381907 is 709183107991.

199701381907 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 199701381907 - 2³ = 199701381899 is a prime.

It is not a weakly prime, because it can be changed into another prime (199701385907) 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, 99850690953 + 99850690954.

It is an arithmetic number, because the mean of its divisors is an integer number (99850690954).

Almost surely, 2^199701381907 is an apocalyptic number.

199701381907 is a deficient number, since it is larger than the sum of its proper divisors (1).

199701381907 is an equidigital number, since it uses as much as digits as its factorization.

199701381907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 55.

The spelling of 199701381907 in words is "one hundred ninety-nine billion, seven hundred one million, three hundred eighty-one thousand, nine hundred seven".