191132858972 has 48 divisors (see below), whose sum is σ = 366889824000. Its totient is φ = 86402828160.

The previous prime is 191132858971. The next prime is 191132858993. The reversal of 191132858972 is 279858231191.

191132858972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191132858971) 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 15 ways as a sum of consecutive naturals, for example, 29092904 + ... + 29099472.

It is an arithmetic number, because the mean of its divisors is an integer number (7643538000).

Almost surely, 2^191132858972 is an apocalyptic number.

It is an amenable number.

191132858972 is a deficient number, since it is larger than the sum of its proper divisors (175756965028).

191132858972 is a wasteful number, since it uses less digits than its factorization.

191132858972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106 (or 10104 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 56.

The spelling of 191132858972 in words is "one hundred ninety-one billion, one hundred thirty-two million, eight hundred fifty-eight thousand, nine hundred seventy-two".