191199175342 has 32 divisors (see below), whose sum is σ = 331447596480. Its totient is φ = 81025228800.

The previous prime is 191199175339. The next prime is 191199175369. The reversal of 191199175342 is 243571991191.

191199175342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 191199175342.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 999448 + ... + 1175284.

It is an arithmetic number, because the mean of its divisors is an integer number (10357737390).

Almost surely, 2^191199175342 is an apocalyptic number.

191199175342 is a deficient number, since it is larger than the sum of its proper divisors (140248421138).

191199175342 is a wasteful number, since it uses less digits than its factorization.

191199175342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176716.

The product of its digits is 612360, while the sum is 52.

The spelling of 191199175342 in words is "one hundred ninety-one billion, one hundred ninety-nine million, one hundred seventy-five thousand, three hundred forty-two".