127636504644422 has 24 divisors (see below), whose sum is σ = 203384195071320. Its totient is φ = 60062784341760.

The previous prime is 127636504644403. The next prime is 127636504644449. The reversal of 127636504644422 is 224446405636721.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 21428522 + ... + 26729282.

It is an arithmetic number, because the mean of its divisors is an integer number (8474341461305).

Almost surely, 2^{127636504644422} is an apocalyptic number.

127636504644422 is a deficient number, since it is larger than the sum of its proper divisors (75747690426898).

127636504644422 is a wasteful number, since it uses less digits than its factorization.

127636504644422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5342456 (or 5342439 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 56.

The spelling of 127636504644422 in words is "one hundred twenty-seven trillion, six hundred thirty-six billion, five hundred four million, six hundred forty-four thousand, four hundred twenty-two".