127691580885 has 16 divisors (see below), whose sum is σ = 222879850560. Its totient is φ = 61911069440.

The previous prime is 127691580853. The next prime is 127691580889. The reversal of 127691580885 is 588085196721.

It is not a de Polignac number, because 127691580885 - 2⁵ = 127691580853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127691580889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386944020 + ... + 386944349.

It is an arithmetic number, because the mean of its divisors is an integer number (13929990660).

Almost surely, 2^127691580885 is an apocalyptic number.

127691580885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127691580885 is a deficient number, since it is larger than the sum of its proper divisors (95188269675).

127691580885 is a wasteful number, since it uses less digits than its factorization.

127691580885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773888388.

The product of its (nonzero) digits is 9676800, while the sum is 60.

The spelling of 127691580885 in words is "one hundred twenty-seven billion, six hundred ninety-one million, five hundred eighty thousand, eight hundred eighty-five".