127838438443134 has 48 divisors (see below), whose sum is σ = 285588302972544. Its totient is φ = 41304093339600.

The previous prime is 127838438443127. The next prime is 127838438443139. The reversal of 127838438443134 is 431344834838721.

127838438443134 is a `hidden beast` number, since 1 + 2 + 7 + 8 + 3 + 84 + 384 + 43 + 134 = 666.

It is a super-4 number, since 4×127838438443134⁴ (a number of 58 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127838438443139) 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 23 ways as a sum of consecutive naturals, for example, 630302962 + ... + 630505749.

It is an arithmetic number, because the mean of its divisors is an integer number (5949756311928).

Almost surely, 2^{127838438443134} is an apocalyptic number.

127838438443134 is an abundant number, since it is smaller than the sum of its proper divisors (157749864529410).

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

127838438443134 is a wasteful number, since it uses less digits than its factorization.

127838438443134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260808893 (or 1260808890 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 63.

The spelling of 127838438443134 in words is "one hundred twenty-seven trillion, eight hundred thirty-eight billion, four hundred thirty-eight million, four hundred forty-three thousand, one hundred thirty-four".