129241328398 has 32 divisors (see below), whose sum is σ = 238659240960. Its totient is φ = 51115609440.

The previous prime is 129241328371. The next prime is 129241328407. The reversal of 129241328398 is 893823142921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655333 + ... + 829423.

It is an arithmetic number, because the mean of its divisors is an integer number (7458101280).

Almost surely, 2^129241328398 is an apocalyptic number.

129241328398 is a deficient number, since it is larger than the sum of its proper divisors (109417912562).

129241328398 is a wasteful number, since it uses less digits than its factorization.

129241328398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178192.

The product of its digits is 1492992, while the sum is 52.

The spelling of 129241328398 in words is "one hundred twenty-nine billion, two hundred forty-one million, three hundred twenty-eight thousand, three hundred ninety-eight".