181282097377 has 2 divisors, whose sum is σ = 181282097378. Its totient is φ = 181282097376.

The previous prime is 181282097371. The next prime is 181282097401. The reversal of 181282097377 is 773790282181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176581486656 + 4700610721 = 420216^2 + 68561^2 .

It is a cyclic number.

It is not a de Polignac number, because 181282097377 - 2¹⁹ = 181281573089 is a prime.

It is a super-2 number, since 2×181282097377² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (181282097371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90641048688 + 90641048689.

It is an arithmetic number, because the mean of its divisors is an integer number (90641048689).

Almost surely, 2^181282097377 is an apocalyptic number.

It is an amenable number.

181282097377 is a deficient number, since it is larger than the sum of its proper divisors (1).

181282097377 is an equidigital number, since it uses as much as digits as its factorization.

181282097377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2370816, while the sum is 55.

The spelling of 181282097377 in words is "one hundred eighty-one billion, two hundred eighty-two million, ninety-seven thousand, three hundred seventy-seven".