117182281729 has 2 divisors, whose sum is σ = 117182281730. Its totient is φ = 117182281728.

The previous prime is 117182281717. The next prime is 117182281757. The reversal of 117182281729 is 927182281711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98877544704 + 18304737025 = 314448^2 + 135295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117182281729 is a prime.

It is not a weakly prime, because it can be changed into another prime (117182281529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58591140864 + 58591140865.

It is an arithmetic number, because the mean of its divisors is an integer number (58591140865).

Almost surely, 2^117182281729 is an apocalyptic number.

It is an amenable number.

117182281729 is a deficient number, since it is larger than the sum of its proper divisors (1).

117182281729 is an equidigital number, since it uses as much as digits as its factorization.

117182281729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 49.

The spelling of 117182281729 in words is "one hundred seventeen billion, one hundred eighty-two million, two hundred eighty-one thousand, seven hundred twenty-nine".