117646725121 has 2 divisors, whose sum is σ = 117646725122. Its totient is φ = 117646725120.

The previous prime is 117646725089. The next prime is 117646725151. The reversal of 117646725121 is 121527646711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100767518721 + 16879206400 = 317439^2 + 129920^2 .

It is an emirp because it is prime and its reverse (121527646711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117646725121 - 2⁵ = 117646725089 is a prime.

It is a super-2 number, since 2×117646725121² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (117646725151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58823362560 + 58823362561.

It is an arithmetic number, because the mean of its divisors is an integer number (58823362561).

Almost surely, 2^117646725121 is an apocalyptic number.

It is an amenable number.

117646725121 is a deficient number, since it is larger than the sum of its proper divisors (1).

117646725121 is an equidigital number, since it uses as much as digits as its factorization.

117646725121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 43.

The spelling of 117646725121 in words is "one hundred seventeen billion, six hundred forty-six million, seven hundred twenty-five thousand, one hundred twenty-one".