127709873911855 has 16 divisors (see below), whose sum is σ = 153503999892000. Its totient is φ = 101999808167040.

The previous prime is 127709873911843. The next prime is 127709873911877. The reversal of 127709873911855 is 558119378907721.

It is not a de Polignac number, because 127709873911855 - 2⁹ = 127709873911343 is a prime.

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, 106331985 + ... + 107526325.

It is an arithmetic number, because the mean of its divisors is an integer number (9593999993250).

Almost surely, 2^{127709873911855} is an apocalyptic number.

127709873911855 is a deficient number, since it is larger than the sum of its proper divisors (25794125980145).

127709873911855 is a wasteful number, since it uses less digits than its factorization.

127709873911855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229514.

The product of its (nonzero) digits is 266716800, while the sum is 73.

The spelling of 127709873911855 in words is "one hundred twenty-seven trillion, seven hundred nine billion, eight hundred seventy-three million, nine hundred eleven thousand, eight hundred fifty-five".