129888086487109 has 8 divisors (see below), whose sum is σ = 129940345879200. Its totient is φ = 129835828122000.

The previous prime is 129888086487011. The next prime is 129888086487127. The reversal of 129888086487109 is 901784680888921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129888086487109 - 2⁷ = 129888086486981 is a prime.

It is a super-2 number, since 2×129888086487109² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129888086487199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346096654 + ... + 346471744.

It is an arithmetic number, because the mean of its divisors is an integer number (16242543234900).

Almost surely, 2^{129888086487109} is an apocalyptic number.

It is an amenable number.

129888086487109 is a deficient number, since it is larger than the sum of its proper divisors (52259392091).

129888086487109 is a wasteful number, since it uses less digits than its factorization.

129888086487109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513491.

The product of its (nonzero) digits is 891813888, while the sum is 79.

The spelling of 129888086487109 in words is "one hundred twenty-nine trillion, eight hundred eighty-eight billion, eighty-six million, four hundred eighty-seven thousand, one hundred nine".