129327710389 has 2 divisors, whose sum is σ = 129327710390. Its totient is φ = 129327710388.

The previous prime is 129327710377. The next prime is 129327710429. The reversal of 129327710389 is 983017723921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124654894225 + 4672816164 = 353065^2 + 68358^2 .

It is a cyclic number.

It is not a de Polignac number, because 129327710389 - 2¹³ = 129327702197 is a prime.

It is a super-2 number, since 2×129327710389² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129327710489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64663855194 + 64663855195.

It is an arithmetic number, because the mean of its divisors is an integer number (64663855195).

Almost surely, 2^129327710389 is an apocalyptic number.

It is an amenable number.

129327710389 is a deficient number, since it is larger than the sum of its proper divisors (1).

129327710389 is an equidigital number, since it uses as much as digits as its factorization.

129327710389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 129327710389 in words is "one hundred twenty-nine billion, three hundred twenty-seven million, seven hundred ten thousand, three hundred eighty-nine".