199922750647 has 2 divisors, whose sum is σ = 199922750648. Its totient is φ = 199922750646.

The previous prime is 199922750639. The next prime is 199922750681. The reversal of 199922750647 is 746057229991.

199922750647 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 199922750647 - 2³ = 199922750639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199922750047) 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, 99961375323 + 99961375324.

It is an arithmetic number, because the mean of its divisors is an integer number (99961375324).

Almost surely, 2^199922750647 is an apocalyptic number.

199922750647 is a deficient number, since it is larger than the sum of its proper divisors (1).

199922750647 is an equidigital number, since it uses as much as digits as its factorization.

199922750647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17146080, while the sum is 61.

The spelling of 199922750647 in words is "one hundred ninety-nine billion, nine hundred twenty-two million, seven hundred fifty thousand, six hundred forty-seven".