180688044277129 has 2 divisors, whose sum is σ = 180688044277130. Its totient is φ = 180688044277128.

The previous prime is 180688044277067. The next prime is 180688044277151. The reversal of 180688044277129 is 921772440886081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140513807237904 + 40174237039225 = 11853852^2 + 6338315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180688044277129 is a prime.

It is not a weakly prime, because it can be changed into another prime (180688048277129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90344022138564 + 90344022138565.

It is an arithmetic number, because the mean of its divisors is an integer number (90344022138565).

Almost surely, 2^{180688044277129} is an apocalyptic number.

It is an amenable number.

180688044277129 is a deficient number, since it is larger than the sum of its proper divisors (1).

180688044277129 is an equidigital number, since it uses as much as digits as its factorization.

180688044277129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86704128, while the sum is 67.

The spelling of 180688044277129 in words is "one hundred eighty trillion, six hundred eighty-eight billion, forty-four million, two hundred seventy-seven thousand, one hundred twenty-nine".