11891321167 has 8 divisors (see below), whose sum is σ = 13044022992. Its totient is φ = 10750564800.

The previous prime is 11891321131. The next prime is 11891321207. The reversal of 11891321167 is 76112319811.

11891321167 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11891321167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11891321467) 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 7 ways as a sum of consecutive naturals, for example, 2984278 + ... + 2988259.

It is an arithmetic number, because the mean of its divisors is an integer number (1630502874).

Almost surely, 2^11891321167 is an apocalyptic number.

11891321167 is a deficient number, since it is larger than the sum of its proper divisors (1152701825).

11891321167 is a wasteful number, since it uses less digits than its factorization.

11891321167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5972729.

The product of its digits is 18144, while the sum is 40.

The spelling of 11891321167 in words is "eleven billion, eight hundred ninety-one million, three hundred twenty-one thousand, one hundred sixty-seven".