199969197073 has 4 divisors (see below), whose sum is σ = 200020226560. Its totient is φ = 199918167588.

The previous prime is 199969197059. The next prime is 199969197083. The reversal of 199969197073 is 370791969991.

199969197073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 199969197073 - 2²¹ = 199967099921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199969196993 and 199969197011.

It is not an unprimeable number, because it can be changed into a prime (199969197013) 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 in 3 ways as a sum of consecutive naturals, for example, 25508865 + ... + 25516702.

It is an arithmetic number, because the mean of its divisors is an integer number (50005056640).

Almost surely, 2^199969197073 is an apocalyptic number.

It is an amenable number.

199969197073 is a deficient number, since it is larger than the sum of its proper divisors (51029487).

199969197073 is an equidigital number, since it uses as much as digits as its factorization.

199969197073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51029486.

The product of its (nonzero) digits is 52081218, while the sum is 70.

The spelling of 199969197073 in words is "one hundred ninety-nine billion, nine hundred sixty-nine million, one hundred ninety-seven thousand, seventy-three".