129682015313280 has 128 divisors (see below), whose sum is σ = 413373565836000. Its totient is φ = 34580854947840.

The previous prime is 129682015313261. The next prime is 129682015313281. The reversal of 129682015313280 is 82313510286921.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129682015313281) 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, 65551410 + ... + 67500750.

Almost surely, 2^{129682015313280} is an apocalyptic number.

129682015313280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129682015313280 is an abundant number, since it is smaller than the sum of its proper divisors (283691550522720).

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

129682015313280 is a wasteful number, since it uses less digits than its factorization.

129682015313280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984012 (or 1984000 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 129682015313280 in words is "one hundred twenty-nine trillion, six hundred eighty-two billion, fifteen million, three hundred thirteen thousand, two hundred eighty".