129596388432 has 80 divisors (see below), whose sum is σ = 399253493760. Its totient is φ = 35417644416.

The previous prime is 129596388413. The next prime is 129596388437. The reversal of 129596388432 is 234883695921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129596388437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8377132 + ... + 8392587.

It is an arithmetic number, because the mean of its divisors is an integer number (4990668672).

Almost surely, 2^129596388432 is an apocalyptic number.

129596388432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129596388432 is an abundant number, since it is smaller than the sum of its proper divisors (269657105328).

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

129596388432 is a wasteful number, since it uses less digits than its factorization.

129596388432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16769760 (or 16769754 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 60.

The spelling of 129596388432 in words is "one hundred twenty-nine billion, five hundred ninety-six million, three hundred eighty-eight thousand, four hundred thirty-two".