127788027775 has 12 divisors (see below), whose sum is σ = 158527869192. Its totient is φ = 102184799840.

The previous prime is 127788027751. The next prime is 127788027779. The reversal of 127788027775 is 577720887721.

It is not a de Polignac number, because 127788027775 - 2¹¹ = 127788025727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127788027779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1083364 + ... + 1195513.

It is an arithmetic number, because the mean of its divisors is an integer number (13210655766).

Almost surely, 2^127788027775 is an apocalyptic number.

127788027775 is a deficient number, since it is larger than the sum of its proper divisors (30739841417).

127788027775 is a wasteful number, since it uses less digits than its factorization.

127788027775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281130 (or 2281125 counting only the distinct ones).

The product of its (nonzero) digits is 21512960, while the sum is 61.

The spelling of 127788027775 in words is "one hundred twenty-seven billion, seven hundred eighty-eight million, twenty-seven thousand, seven hundred seventy-five".