129534238000 has 40 divisors (see below), whose sum is σ = 313213792320. Its totient is φ = 51813694400.

The previous prime is 129534237953. The next prime is 129534238049. The reversal of 129534238000 is 832435921.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 32381560 + ... + 32385559.

It is an arithmetic number, because the mean of its divisors is an integer number (7830344808).

Almost surely, 2^129534238000 is an apocalyptic number.

129534238000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129534238000 is an abundant number, since it is smaller than the sum of its proper divisors (183679554320).

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

129534238000 is an equidigital number, since it uses as much as digits as its factorization.

129534238000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64767142 (or 64767126 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 129534238000 in words is "one hundred twenty-nine billion, five hundred thirty-four million, two hundred thirty-eight thousand".