129859361077 has 2 divisors, whose sum is σ = 129859361078. Its totient is φ = 129859361076.

The previous prime is 129859361059. The next prime is 129859361081. The reversal of 129859361077 is 770163958921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106844650641 + 23014710436 = 326871^2 + 151706^2 .

It is a cyclic number.

It is not a de Polignac number, because 129859361077 - 2²⁷ = 129725143349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129859361477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64929680538 + 64929680539.

It is an arithmetic number, because the mean of its divisors is an integer number (64929680539).

Almost surely, 2^129859361077 is an apocalyptic number.

It is an amenable number.

129859361077 is a deficient number, since it is larger than the sum of its proper divisors (1).

129859361077 is an equidigital number, since it uses as much as digits as its factorization.

129859361077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5715360, while the sum is 58.

The spelling of 129859361077 in words is "one hundred twenty-nine billion, eight hundred fifty-nine million, three hundred sixty-one thousand, seventy-seven".