199029850318 has 24 divisors (see below), whose sum is σ = 342292557888. Its totient is φ = 86456403072.

The previous prime is 199029850309. The next prime is 199029850379. The reversal of 199029850318 is 813058920991.

It is a super-2 number, since 2×199029850318² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17313246 + ... + 17324737.

It is an arithmetic number, because the mean of its divisors is an integer number (14262189912).

Almost surely, 2^199029850318 is an apocalyptic number.

199029850318 is a deficient number, since it is larger than the sum of its proper divisors (143262707570).

199029850318 is a wasteful number, since it uses less digits than its factorization.

199029850318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34638028 (or 34638015 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 55.

The spelling of 199029850318 in words is "one hundred ninety-nine billion, twenty-nine million, eight hundred fifty thousand, three hundred eighteen".