129338076720 has 320 divisors, whose sum is σ = 458276382720. Its totient is φ = 29978640384.

The previous prime is 129338076689. The next prime is 129338076733. The reversal of 129338076720 is 27670833921.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 129338076720.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2697597 + ... + 2745123.

It is an arithmetic number, because the mean of its divisors is an integer number (1432113696).

Almost surely, 2^129338076720 is an apocalyptic number.

129338076720 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 129338076720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229138191360).

129338076720 is an abundant number, since it is smaller than the sum of its proper divisors (328938306000).

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

129338076720 is a wasteful number, since it uses less digits than its factorization.

129338076720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47612 (or 47606 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 129338076720 in words is "one hundred twenty-nine billion, three hundred thirty-eight million, seventy-six thousand, seven hundred twenty".