127986381432 has 144 divisors (see below), whose sum is σ = 434239664040. Its totient is φ = 33754637952.

The previous prime is 127986381431. The next prime is 127986381437. The reversal of 127986381432 is 234183689721.

It is a happy number.

127986381432 is a `hidden beast` number, since 1 + 2 + 79 + 8 + 63 + 81 + 432 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127986381431) 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 35 ways as a sum of consecutive naturals, for example, 1349418 + ... + 1441145.

Almost surely, 2^127986381432 is an apocalyptic number.

127986381432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127986381432 is an abundant number, since it is smaller than the sum of its proper divisors (306253282608).

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

127986381432 is a wasteful number, since it uses less digits than its factorization.

127986381432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790602 (or 2790588 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 127986381432 in words is "one hundred twenty-seven billion, nine hundred eighty-six million, three hundred eighty-one thousand, four hundred thirty-two".