127261873265 has 16 divisors (see below), whose sum is σ = 161706119040. Its totient is φ = 95815560960.

The previous prime is 127261873243. The next prime is 127261873267. The reversal of 127261873265 is 562378162721.

It is not a de Polignac number, because 127261873265 - 2⁸ = 127261873009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127261873267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2468300 + ... + 2519330.

It is an arithmetic number, because the mean of its divisors is an integer number (10106632440).

Almost surely, 2^127261873265 is an apocalyptic number.

It is an amenable number.

127261873265 is a deficient number, since it is larger than the sum of its proper divisors (34444245775).

127261873265 is a wasteful number, since it uses less digits than its factorization.

127261873265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80392.

The product of its digits is 1693440, while the sum is 50.

The spelling of 127261873265 in words is "one hundred twenty-seven billion, two hundred sixty-one million, eight hundred seventy-three thousand, two hundred sixty-five".