129348451200 has 192 divisors, whose sum is σ = 426278073600. Its totient is φ = 34473768960.

The previous prime is 129348451163. The next prime is 129348451201. The reversal of 129348451200 is 2154843921.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129348451201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28980169 + ... + 28984631.

It is an arithmetic number, because the mean of its divisors is an integer number (2220198300).

Almost surely, 2^129348451200 is an apocalyptic number.

129348451200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129348451200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213139036800).

129348451200 is an abundant number, since it is smaller than the sum of its proper divisors (296929622400).

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

129348451200 is a wasteful number, since it uses less digits than its factorization.

129348451200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7509 (or 7492 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 129348451200 in words is "one hundred twenty-nine billion, three hundred forty-eight million, four hundred fifty-one thousand, two hundred".