129291648005120 has 44 divisors (see below), whose sum is σ = 310148441574564. Its totient is φ = 51716659200000.

The previous prime is 129291648005119. The next prime is 129291648005197. The reversal of 129291648005120 is 21500846192921.

It can be written as a sum of positive squares in 2 ways, for example, as 93698682916864 + 35592965088256 = 9679808^2 + 5965984^2 .

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 12626132381 + ... + 12626142620.

Almost surely, 2^{129291648005120} is an apocalyptic number.

129291648005120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129291648005120 is an abundant number, since it is smaller than the sum of its proper divisors (180856793569444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129291648005120 is an equidigital number, since it uses as much as digits as its factorization.

129291648005120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25252275026 (or 25252275008 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The spelling of 129291648005120 in words is "one hundred twenty-nine trillion, two hundred ninety-one billion, six hundred forty-eight million, five thousand, one hundred twenty".