199108126907 has 2 divisors, whose sum is σ = 199108126908. Its totient is φ = 199108126906.

The previous prime is 199108126901. The next prime is 199108126927. The reversal of 199108126907 is 709621801991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199108126907 - 2¹⁶ = 199108061371 is a prime.

It is not a weakly prime, because it can be changed into another prime (199108126901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99554063453 + 99554063454.

It is an arithmetic number, because the mean of its divisors is an integer number (99554063454).

Almost surely, 2^199108126907 is an apocalyptic number.

199108126907 is a deficient number, since it is larger than the sum of its proper divisors (1).

199108126907 is an equidigital number, since it uses as much as digits as its factorization.

199108126907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 53.

The spelling of 199108126907 in words is "one hundred ninety-nine billion, one hundred eight million, one hundred twenty-six thousand, nine hundred seven".