117212810177 has 2 divisors, whose sum is σ = 117212810178. Its totient is φ = 117212810176.

The previous prime is 117212810171. The next prime is 117212810269. The reversal of 117212810177 is 771018212711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89882438416 + 27330371761 = 299804^2 + 165319^2 .

It is a cyclic number.

It is not a de Polignac number, because 117212810177 - 2⁴ = 117212810161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117212810177.

It is not a weakly prime, because it can be changed into another prime (117212810171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58606405088 + 58606405089.

It is an arithmetic number, because the mean of its divisors is an integer number (58606405089).

Almost surely, 2^117212810177 is an apocalyptic number.

It is an amenable number.

117212810177 is a deficient number, since it is larger than the sum of its proper divisors (1).

117212810177 is an equidigital number, since it uses as much as digits as its factorization.

117212810177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10976, while the sum is 38.

The spelling of 117212810177 in words is "one hundred seventeen billion, two hundred twelve million, eight hundred ten thousand, one hundred seventy-seven".