117939838189 has 2 divisors, whose sum is σ = 117939838190. Its totient is φ = 117939838188.

The previous prime is 117939838073. The next prime is 117939838201. The reversal of 117939838189 is 981838939711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113087601225 + 4852236964 = 336285^2 + 69658^2 .

It is a cyclic number.

It is not a de Polignac number, because 117939838189 - 2⁹ = 117939837677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117939838889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58969919094 + 58969919095.

It is an arithmetic number, because the mean of its divisors is an integer number (58969919095).

Almost surely, 2^117939838189 is an apocalyptic number.

It is an amenable number.

117939838189 is a deficient number, since it is larger than the sum of its proper divisors (1).

117939838189 is an equidigital number, since it uses as much as digits as its factorization.

117939838189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23514624, while the sum is 67.

The spelling of 117939838189 in words is "one hundred seventeen billion, nine hundred thirty-nine million, eight hundred thirty-eight thousand, one hundred eighty-nine".