117896602181 has 2 divisors, whose sum is σ = 117896602182. Its totient is φ = 117896602180.

The previous prime is 117896602177. The next prime is 117896602189. The reversal of 117896602181 is 181206698711.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105891017281 + 12005584900 = 325409^2 + 109570^2 .

It is a cyclic number.

It is not a de Polignac number, because 117896602181 - 2² = 117896602177 is a prime.

It is a super-4 number, since 4×117896602181⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117896602189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58948301090 + 58948301091.

It is an arithmetic number, because the mean of its divisors is an integer number (58948301091).

Almost surely, 2^117896602181 is an apocalyptic number.

It is an amenable number.

117896602181 is a deficient number, since it is larger than the sum of its proper divisors (1).

117896602181 is an equidigital number, since it uses as much as digits as its factorization.

117896602181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 50.

The spelling of 117896602181 in words is "one hundred seventeen billion, eight hundred ninety-six million, six hundred two thousand, one hundred eighty-one".