117188928379 has 2 divisors, whose sum is σ = 117188928380. Its totient is φ = 117188928378.

The previous prime is 117188928349. The next prime is 117188928397. The reversal of 117188928379 is 973829881711.

Together with next prime (117188928397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (973829881711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117188928379 - 2¹¹ = 117188926331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117188928379.

It is not a weakly prime, because it can be changed into another prime (117188928349) 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 as a sum of consecutive naturals, namely, 58594464189 + 58594464190.

It is an arithmetic number, because the mean of its divisors is an integer number (58594464190).

Almost surely, 2^117188928379 is an apocalyptic number.

117188928379 is a deficient number, since it is larger than the sum of its proper divisors (1).

117188928379 is an equidigital number, since it uses as much as digits as its factorization.

117188928379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12192768, while the sum is 64.

The spelling of 117188928379 in words is "one hundred seventeen billion, one hundred eighty-eight million, nine hundred twenty-eight thousand, three hundred seventy-nine".