117784247719 has 2 divisors, whose sum is σ = 117784247720. Its totient is φ = 117784247718.

The previous prime is 117784247717. The next prime is 117784247729. The reversal of 117784247719 is 917742487711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117784247719 - 2¹ = 117784247717 is a prime.

It is a super-2 number, since 2×117784247719² (a number of 23 digits) contains 22 as substring.

Together with 117784247717, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117784247717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58892123859 + 58892123860.

It is an arithmetic number, because the mean of its divisors is an integer number (58892123860).

Almost surely, 2^117784247719 is an apocalyptic number.

117784247719 is a deficient number, since it is larger than the sum of its proper divisors (1).

117784247719 is an equidigital number, since it uses as much as digits as its factorization.

117784247719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5531904, while the sum is 58.

The spelling of 117784247719 in words is "one hundred seventeen billion, seven hundred eighty-four million, two hundred forty-seven thousand, seven hundred nineteen".