129704434297120 has 48 divisors (see below), whose sum is σ = 306427450508928. Its totient is φ = 51881651055360.

The previous prime is 129704434297093. The next prime is 129704434297159. The reversal of 129704434297120 is 21792434407921.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100177075 + ... + 101463565.

It is an arithmetic number, because the mean of its divisors is an integer number (6383905218936).

Almost surely, 2^{129704434297120} is an apocalyptic number.

129704434297120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129704434297120 is an abundant number, since it is smaller than the sum of its proper divisors (176723016211808).

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

129704434297120 is a wasteful number, since it uses less digits than its factorization.

129704434297120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916633 (or 1916625 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 129704434297120 in words is "one hundred twenty-nine trillion, seven hundred four billion, four hundred thirty-four million, two hundred ninety-seven thousand, one hundred twenty".