127668926818 has 8 divisors (see below), whose sum is σ = 197680919040. Its totient is φ = 61775287140.

The previous prime is 127668926797. The next prime is 127668926837. The reversal of 127668926818 is 818629866721.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 127668926818.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1029588058 + ... + 1029588181.

It is an arithmetic number, because the mean of its divisors is an integer number (24710114880).

Almost surely, 2^127668926818 is an apocalyptic number.

127668926818 is a deficient number, since it is larger than the sum of its proper divisors (70011992222).

127668926818 is a wasteful number, since it uses less digits than its factorization.

127668926818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059176272.

The product of its digits is 27869184, while the sum is 64.

The spelling of 127668926818 in words is "one hundred twenty-seven billion, six hundred sixty-eight million, nine hundred twenty-six thousand, eight hundred eighteen".