129835422240 has 96 divisors (see below), whose sum is σ = 412952432256. Its totient is φ = 34286622720.

The previous prime is 129835422151. The next prime is 129835422293. The reversal of 129835422240 is 42224538921.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 129835422192 and 129835422201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1263621 + ... + 1362500.

It is an arithmetic number, because the mean of its divisors is an integer number (4301587836).

Almost surely, 2^129835422240 is an apocalyptic number.

129835422240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129835422240 is an abundant number, since it is smaller than the sum of its proper divisors (283117010016).

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

129835422240 is a wasteful number, since it uses less digits than its factorization.

129835422240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626242 (or 2626234 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 129835422240 in words is "one hundred twenty-nine billion, eight hundred thirty-five million, four hundred twenty-two thousand, two hundred forty".