129379141777 has 2 divisors, whose sum is σ = 129379141778. Its totient is φ = 129379141776.

The previous prime is 129379141643. The next prime is 129379141901. The reversal of 129379141777 is 777141973921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114281859136 + 15097282641 = 338056^2 + 122871^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129379141777 is a prime.

It is not a weakly prime, because it can be changed into another prime (129379111777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64689570888 + 64689570889.

It is an arithmetic number, because the mean of its divisors is an integer number (64689570889).

Almost surely, 2^129379141777 is an apocalyptic number.

It is an amenable number.

129379141777 is a deficient number, since it is larger than the sum of its proper divisors (1).

129379141777 is an equidigital number, since it uses as much as digits as its factorization.

129379141777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4667544, while the sum is 58.

The spelling of 129379141777 in words is "one hundred twenty-nine billion, three hundred seventy-nine million, one hundred forty-one thousand, seven hundred seventy-seven".