199034602091 has 12 divisors (see below), whose sum is σ = 215579317248. Its totient is φ = 183675963744.

The previous prime is 199034602043. The next prime is 199034602139. The reversal of 199034602091 is 190206430991.

It is a happy number.

199034602091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (199034602043) and next prime (199034602139).

It is a de Polignac number, because none of the positive numbers 2^k-199034602091 is a prime.

It is a super-2 number, since 2×199034602091² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199034602001) 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 11 ways as a sum of consecutive naturals, for example, 498326 + ... + 803988.

It is an arithmetic number, because the mean of its divisors is an integer number (17964943104).

Almost surely, 2^199034602091 is an apocalyptic number.

199034602091 is a deficient number, since it is larger than the sum of its proper divisors (16544715157).

199034602091 is a wasteful number, since it uses less digits than its factorization.

199034602091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309542 (or 309529 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 199034602091 in words is "one hundred ninety-nine billion, thirty-four million, six hundred two thousand, ninety-one".