380708668181 has 2 divisors, whose sum is σ = 380708668182. Its totient is φ = 380708668180.

The previous prime is 380708668177. The next prime is 380708668199. The reversal of 380708668181 is 181866807083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280909540081 + 99799128100 = 530009^2 + 315910^2 .

It is a cyclic number.

It is not a de Polignac number, because 380708668181 - 2² = 380708668177 is a prime.

It is a super-4 number, since 4×380708668181⁴ (a number of 47 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 (380708668121) 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, 190354334090 + 190354334091.

It is an arithmetic number, because the mean of its divisors is an integer number (190354334091).

Almost surely, 2^380708668181 is an apocalyptic number.

It is an amenable number.

380708668181 is a deficient number, since it is larger than the sum of its proper divisors (1).

380708668181 is an equidigital number, since it uses as much as digits as its factorization.

380708668181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3096576, while the sum is 56.

The spelling of 380708668181 in words is "three hundred eighty billion, seven hundred eight million, six hundred sixty-eight thousand, one hundred eighty-one".