191939292182 has 24 divisors (see below), whose sum is σ = 316597096368. Its totient is φ = 87207858320.

The previous prime is 191939292179. The next prime is 191939292199. The reversal of 191939292182 is 281292939191.

It is a super-2 number, since 2×191939292182² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402143 + ... + 738645.

It is an arithmetic number, because the mean of its divisors is an integer number (13191545682).

Almost surely, 2^191939292182 is an apocalyptic number.

191939292182 is a deficient number, since it is larger than the sum of its proper divisors (124657804186).

191939292182 is a wasteful number, since it uses less digits than its factorization.

191939292182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338884 (or 338873 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 56.

The spelling of 191939292182 in words is "one hundred ninety-one billion, nine hundred thirty-nine million, two hundred ninety-two thousand, one hundred eighty-two".