127531338663 has 16 divisors (see below), whose sum is σ = 174190247936. Its totient is φ = 82968611040.

The previous prime is 127531338659. The next prime is 127531338757. The reversal of 127531338663 is 366833135721.

It is not a de Polignac number, because 127531338663 - 2² = 127531338659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127531338763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2720431 + ... + 2766912.

It is an arithmetic number, because the mean of its divisors is an integer number (10886890496).

Almost surely, 2^127531338663 is an apocalyptic number.

127531338663 is a deficient number, since it is larger than the sum of its proper divisors (46658909273).

127531338663 is a wasteful number, since it uses less digits than its factorization.

127531338663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5487534.

The product of its digits is 1632960, while the sum is 48.

The spelling of 127531338663 in words is "one hundred twenty-seven billion, five hundred thirty-one million, three hundred thirty-eight thousand, six hundred sixty-three".