188350350197 has 4 divisors (see below), whose sum is σ = 188368882380. Its totient is φ = 188331818016.

The previous prime is 188350350187. The next prime is 188350350211. The reversal of 188350350197 is 791053053881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 791053053881 = 50957 ⋅15523933.

It can be written as a sum of positive squares in 2 ways, for example, as 111817340881 + 76533009316 = 334391^2 + 276646^2 .

It is a cyclic number.

It is not a de Polignac number, because 188350350197 - 2¹⁸ = 188350088053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188350350107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9250838 + ... + 9271175.

It is an arithmetic number, because the mean of its divisors is an integer number (47092220595).

Almost surely, 2^188350350197 is an apocalyptic number.

It is an amenable number.

188350350197 is a deficient number, since it is larger than the sum of its proper divisors (18532183).

188350350197 is a wasteful number, since it uses less digits than its factorization.

188350350197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18532182.

The product of its (nonzero) digits is 907200, while the sum is 50.

The spelling of 188350350197 in words is "one hundred eighty-eight billion, three hundred fifty million, three hundred fifty thousand, one hundred ninety-seven".