129899604954624 has 80 divisors (see below), whose sum is σ = 346065897091200. Its totient is φ = 43299213834240.

The previous prime is 129899604954601. The next prime is 129899604954631. The reversal of 129899604954624 is 426459406998921.

It is a self number, because there is not a number n which added to its sum of digits gives 129899604954624.

It is a congruent 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, 106902027 + ... + 108110325.

It is an arithmetic number, because the mean of its divisors is an integer number (4325823713640).

Almost surely, 2^{129899604954624} is an apocalyptic number.

It is an amenable number.

129899604954624 is an abundant number, since it is smaller than the sum of its proper divisors (216166292136576).

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

129899604954624 is an equidigital number, since it uses as much as digits as its factorization.

129899604954624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278311 (or 1278295 counting only the distinct ones).

The product of its (nonzero) digits is 2418647040, while the sum is 78.

The spelling of 129899604954624 in words is "one hundred twenty-nine trillion, eight hundred ninety-nine billion, six hundred four million, nine hundred fifty-four thousand, six hundred twenty-four".