117213677509 has 2 divisors, whose sum is σ = 117213677510. Its totient is φ = 117213677508.

The previous prime is 117213677459. The next prime is 117213677531. The reversal of 117213677509 is 905776312711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114741400225 + 2472277284 = 338735^2 + 49722^2 .

It is a cyclic number.

It is not a de Polignac number, because 117213677509 - 2¹¹ = 117213675461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117213677569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58606838754 + 58606838755.

It is an arithmetic number, because the mean of its divisors is an integer number (58606838755).

Almost surely, 2^117213677509 is an apocalyptic number.

It is an amenable number.

117213677509 is a deficient number, since it is larger than the sum of its proper divisors (1).

117213677509 is an equidigital number, since it uses as much as digits as its factorization.

117213677509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 555660, while the sum is 49.

The spelling of 117213677509 in words is "one hundred seventeen billion, two hundred thirteen million, six hundred seventy-seven thousand, five hundred nine".