127129636234 has 8 divisors (see below), whose sum is σ = 200731004640. Its totient is φ = 60219301356.

The previous prime is 127129636189. The next prime is 127129636237. The reversal of 127129636234 is 432636921721.

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

It is not an unprimeable number, because it can be changed into a prime (127129636237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1672758334 + ... + 1672758409.

It is an arithmetic number, because the mean of its divisors is an integer number (25091375580).

Almost surely, 2^127129636234 is an apocalyptic number.

127129636234 is a deficient number, since it is larger than the sum of its proper divisors (73601368406).

127129636234 is a wasteful number, since it uses less digits than its factorization.

127129636234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3345516764.

The product of its digits is 653184, while the sum is 46.

The spelling of 127129636234 in words is "one hundred twenty-seven billion, one hundred twenty-nine million, six hundred thirty-six thousand, two hundred thirty-four".