117381382191 has 6 divisors (see below), whose sum is σ = 169550885400. Its totient is φ = 78254254788.

The previous prime is 117381382189. The next prime is 117381382219. The reversal of 117381382191 is 191283183711.

117381382191 is a `hidden beast` number, since 1 + 1 + 7 + 3 + 81 + 382 + 191 = 666.

It is not a de Polignac number, because 117381382191 - 2¹ = 117381382189 is a prime.

It is a super-2 number, since 2×117381382191² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117381382171) 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 5 ways as a sum of consecutive naturals, for example, 6521187891 + ... + 6521187908.

It is an arithmetic number, because the mean of its divisors is an integer number (28258480900).

Almost surely, 2^117381382191 is an apocalyptic number.

117381382191 is a deficient number, since it is larger than the sum of its proper divisors (52169503209).

117381382191 is a wasteful number, since it uses less digits than its factorization.

117381382191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13042375805 (or 13042375802 counting only the distinct ones).

The product of its digits is 72576, while the sum is 45.

The spelling of 117381382191 in words is "one hundred seventeen billion, three hundred eighty-one million, three hundred eighty-two thousand, one hundred ninety-one".