127936668 has 12 divisors (see below), whose sum is σ = 298518920. Its totient is φ = 42645552.

The previous prime is 127936667. The next prime is 127936681. The reversal of 127936668 is 866639721.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127936667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5330683 + ... + 5330706.

Almost surely, 2^127936668 is an apocalyptic number.

It is an amenable number.

127936668 is an abundant number, since it is smaller than the sum of its proper divisors (170582252).

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

127936668 is a wasteful number, since it uses less digits than its factorization.

127936668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10661396 (or 10661394 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 127936668 is about 11310.9092472710. The cubic root of 127936668 is about 503.8852882042.

The spelling of 127936668 in words is "one hundred twenty-seven million, nine hundred thirty-six thousand, six hundred sixty-eight".