129889587247998 has 8 divisors (see below), whose sum is σ = 259779174496008. Its totient is φ = 43296529082664.

The previous prime is 129889587247991. The next prime is 129889587248021. The reversal of 129889587247998 is 899742785988921.

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

129889587247998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129889587247991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10824132270661 + ... + 10824132270672.

It is an arithmetic number, because the mean of its divisors is an integer number (32472396812001).

Almost surely, 2^{129889587247998} is an apocalyptic number.

129889587247998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

129889587247998 is a wasteful number, since it uses less digits than its factorization.

129889587247998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21648264541338.

The product of its digits is 105345515520, while the sum is 96.

The spelling of 129889587247998 in words is "one hundred twenty-nine trillion, eight hundred eighty-nine billion, five hundred eighty-seven million, two hundred forty-seven thousand, nine hundred ninety-eight".