127255744265568 has 96 divisors (see below), whose sum is σ = 336164596588800. Its totient is φ = 42149773401600.

The previous prime is 127255744265539. The next prime is 127255744265581. The reversal of 127255744265568 is 865562447552721.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44315158 + ... + 47099306.

It is an arithmetic number, because the mean of its divisors is an integer number (3501714547800).

Almost surely, 2^{127255744265568} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127255744265568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168082298294400).

127255744265568 is an abundant number, since it is smaller than the sum of its proper divisors (208908852323232).

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

127255744265568 is a wasteful number, since it uses less digits than its factorization.

127255744265568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787180 (or 2787172 counting only the distinct ones).

The product of its digits is 1128960000, while the sum is 69.

The spelling of 127255744265568 in words is "one hundred twenty-seven trillion, two hundred fifty-five billion, seven hundred forty-four million, two hundred sixty-five thousand, five hundred sixty-eight".