129124806284 has 36 divisors (see below), whose sum is σ = 239485932000. Its totient is φ = 60908301216.

The previous prime is 129124806277. The next prime is 129124806289. The reversal of 129124806284 is 482608421921.

It is a happy number.

129124806284 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (129124806289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158042 + ... + 532190.

It is an arithmetic number, because the mean of its divisors is an integer number (6652387000).

Almost surely, 2^129124806284 is an apocalyptic number.

It is an amenable number.

129124806284 is a deficient number, since it is larger than the sum of its proper divisors (110361125716).

129124806284 is a wasteful number, since it uses less digits than its factorization.

129124806284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374430 (or 374409 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The spelling of 129124806284 in words is "one hundred twenty-nine billion, one hundred twenty-four million, eight hundred six thousand, two hundred eighty-four".