129268607232 has 72 divisors (see below), whose sum is σ = 355141239040. Its totient is φ = 41699543040.

The previous prime is 129268607179. The next prime is 129268607261. The reversal of 129268607232 is 232706862921.

129268607232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2691007 + ... + 2738622.

Almost surely, 2^129268607232 is an apocalyptic number.

129268607232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129268607232 is an abundant number, since it is smaller than the sum of its proper divisors (225872631808).

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

129268607232 is an equidigital number, since it uses as much as digits as its factorization.

129268607232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5429679 (or 5429665 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 129268607232 in words is "one hundred twenty-nine billion, two hundred sixty-eight million, six hundred seven thousand, two hundred thirty-two".