127944533836 has 48 divisors (see below), whose sum is σ = 260417360896. Its totient is φ = 53867493504.

The previous prime is 127944533813. The next prime is 127944533869. The reversal of 127944533836 is 638335449721.

It is a happy number.

It is a super-2 number, since 2×127944533836² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 595576 + ... + 781408.

Almost surely, 2^127944533836 is an apocalyptic number.

It is an amenable number.

127944533836 is an abundant number, since it is smaller than the sum of its proper divisors (132472827060).

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

127944533836 is a wasteful number, since it uses less digits than its factorization.

127944533836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186278 (or 186276 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 55.

The spelling of 127944533836 in words is "one hundred twenty-seven billion, nine hundred forty-four million, five hundred thirty-three thousand, eight hundred thirty-six".