127133639868 has 48 divisors (see below), whose sum is σ = 321399429120. Its totient is φ = 38957501184.

The previous prime is 127133639861. The next prime is 127133639869. The reversal of 127133639868 is 868936331721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127133639861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7237788 + ... + 7255331.

It is an arithmetic number, because the mean of its divisors is an integer number (6695821440).

Almost surely, 2^127133639868 is an apocalyptic number.

It is an amenable number.

127133639868 is an abundant number, since it is smaller than the sum of its proper divisors (194265789252).

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

127133639868 is a wasteful number, since it uses less digits than its factorization.

127133639868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14493186 (or 14493184 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 57.

The spelling of 127133639868 in words is "one hundred twenty-seven billion, one hundred thirty-three million, six hundred thirty-nine thousand, eight hundred sixty-eight".