11791394312127 has 4 divisors (see below), whose sum is σ = 15721859082840. Its totient is φ = 7860929541416.

The previous prime is 11791394312107. The next prime is 11791394312153. The reversal of 11791394312127 is 72121349319711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11791394312127 - 2²² = 11791390117823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11791394312127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11791394312107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1965232385352 + ... + 1965232385357.

It is an arithmetic number, because the mean of its divisors is an integer number (3930464770710).

Almost surely, 2^{11791394312127} is an apocalyptic number.

11791394312127 is a deficient number, since it is larger than the sum of its proper divisors (3930464770713).

11791394312127 is an equidigital number, since it uses as much as digits as its factorization.

11791394312127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930464770712.

The product of its digits is 571536, while the sum is 51.

The spelling of 11791394312127 in words is "eleven trillion, seven hundred ninety-one billion, three hundred ninety-four million, three hundred twelve thousand, one hundred twenty-seven".