117138942719 has 2 divisors, whose sum is σ = 117138942720. Its totient is φ = 117138942718.

The previous prime is 117138942689. The next prime is 117138942751. The reversal of 117138942719 is 917249831711.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117138942719 is a prime.

It is a super-2 number, since 2×117138942719² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117138947719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58569471359 + 58569471360.

It is an arithmetic number, because the mean of its divisors is an integer number (58569471360).

Almost surely, 2^117138942719 is an apocalyptic number.

117138942719 is a deficient number, since it is larger than the sum of its proper divisors (1).

117138942719 is an equidigital number, since it uses as much as digits as its factorization.

117138942719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 53.

The spelling of 117138942719 in words is "one hundred seventeen billion, one hundred thirty-eight million, nine hundred forty-two thousand, seven hundred nineteen".