129465763830729 has 16 divisors (see below), whose sum is σ = 192092180385600. Its totient is φ = 86179537267488.

The previous prime is 129465763830713. The next prime is 129465763830761. The reversal of 129465763830729 is 927038367564921.

It is a happy number.

129465763830729 is a `hidden beast` number, since 1 + 2 + 9 + 46 + 576 + 3 + 8 + 3 + 0 + 7 + 2 + 9 = 666.

It is not a de Polignac number, because 129465763830729 - 2⁴ = 129465763830713 is a prime.

It is a super-2 number, since 2×129465763830729² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129465763832729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3638091684 + ... + 3638127269.

It is an arithmetic number, because the mean of its divisors is an integer number (12005761274100).

It is a 1-persistent number, because it is pandigital, but 2⋅129465763830729 = 258931527661458 is not.

Almost surely, 2^{129465763830729} is an apocalyptic number.

It is an amenable number.

129465763830729 is a deficient number, since it is larger than the sum of its proper divisors (62626416554871).

129465763830729 is an equidigital number, since it uses as much as digits as its factorization.

129465763830729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276219621 (or 7276219615 counting only the distinct ones).

The product of its (nonzero) digits is 823011840, while the sum is 72.

The spelling of 129465763830729 in words is "one hundred twenty-nine trillion, four hundred sixty-five billion, seven hundred sixty-three million, eight hundred thirty thousand, seven hundred twenty-nine".