129139465170 has 32 divisors (see below), whose sum is σ = 309965387328. Its totient is φ = 34433782848.

The previous prime is 129139465157. The next prime is 129139465171. The reversal of 129139465170 is 71564931921.

129139465170 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (129139465171) 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, 102897 + ... + 518523.

It is an arithmetic number, because the mean of its divisors is an integer number (9686418354).

Almost surely, 2^129139465170 is an apocalyptic number.

129139465170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129139465170 is an abundant number, since it is smaller than the sum of its proper divisors (180825922158).

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

129139465170 is a wasteful number, since it uses less digits than its factorization.

129139465170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425994.

The product of its (nonzero) digits is 408240, while the sum is 48.

The spelling of 129139465170 in words is "one hundred twenty-nine billion, one hundred thirty-nine million, four hundred sixty-five thousand, one hundred seventy".