129200004485280 has 288 divisors, whose sum is σ = 487126975555584. Its totient is φ = 31016812535808.

The previous prime is 129200004485267. The next prime is 129200004485281. The reversal of 129200004485280 is 82584400002921.

129200004485280 is a `hidden beast` number, since 1 + 2 + 92 + 0 + 0 + 0 + 0 + 4 + 485 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (129200004485281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 114171264 + ... + 115297343.

It is an arithmetic number, because the mean of its divisors is an integer number (1691413109568).

Almost surely, 2^{129200004485280} is an apocalyptic number.

129200004485280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129200004485280 is an abundant number, since it is smaller than the sum of its proper divisors (357926971070304).

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

129200004485280 is a wasteful number, since it uses less digits than its factorization.

129200004485280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229468668 (or 229468657 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 129200004485280 in words is "one hundred twenty-nine trillion, two hundred billion, four million, four hundred eighty-five thousand, two hundred eighty".