127255776328001 has 4 divisors (see below), whose sum is σ = 127288804044372. Its totient is φ = 127222748611632.

The previous prime is 127255776327997. The next prime is 127255776328007. The reversal of 127255776328001 is 100823677552721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 123688207110400 + 3567569217601 = 11121520^2 + 1888801^2 .

It is a cyclic number.

It is not a de Polignac number, because 127255776328001 - 2² = 127255776327997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127255776328007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16513852406 + ... + 16513860111.

It is an arithmetic number, because the mean of its divisors is an integer number (31822201011093).

Almost surely, 2^{127255776328001} is an apocalyptic number.

It is an amenable number.

127255776328001 is a deficient number, since it is larger than the sum of its proper divisors (33027716371).

127255776328001 is an equidigital number, since it uses as much as digits as its factorization.

127255776328001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33027716370.

The product of its (nonzero) digits is 9878400, while the sum is 56.

The spelling of 127255776328001 in words is "one hundred twenty-seven trillion, two hundred fifty-five billion, seven hundred seventy-six million, three hundred twenty-eight thousand, one".