191047127041 has 4 divisors (see below), whose sum is σ = 194285214000. Its totient is φ = 187809040084.

The previous prime is 191047126987. The next prime is 191047127059. The reversal of 191047127041 is 140721740191.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 191047127041 - 2²⁵ = 191013572609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (191047125041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1619043391 + ... + 1619043508.

It is an arithmetic number, because the mean of its divisors is an integer number (48571303500).

Almost surely, 2^191047127041 is an apocalyptic number.

It is an amenable number.

191047127041 is a deficient number, since it is larger than the sum of its proper divisors (3238086959).

191047127041 is an equidigital number, since it uses as much as digits as its factorization.

191047127041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238086958.

The product of its (nonzero) digits is 14112, while the sum is 37.

The spelling of 191047127041 in words is "one hundred ninety-one billion, forty-seven million, one hundred twenty-seven thousand, forty-one".