11887334191 has 8 divisors (see below), whose sum is σ = 12607523424. Its totient is φ = 11184090720.

The previous prime is 11887334177. The next prime is 11887334203. The reversal of 11887334191 is 19143378811.

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

It is a cyclic number.

It is not a de Polignac number, because 11887334191 - 2¹¹ = 11887332143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11887734191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4234996 + ... + 4237801.

It is an arithmetic number, because the mean of its divisors is an integer number (1575940428).

Almost surely, 2^11887334191 is an apocalyptic number.

11887334191 is a deficient number, since it is larger than the sum of its proper divisors (720189233).

11887334191 is an equidigital number, since it uses as much as digits as its factorization.

11887334191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8472881.

The product of its digits is 145152, while the sum is 46.

The spelling of 11887334191 in words is "eleven billion, eight hundred eighty-seven million, three hundred thirty-four thousand, one hundred ninety-one".