127969097520 has 160 divisors (see below), whose sum is σ = 433211201280. Its totient is φ = 30991057920.

The previous prime is 127969097497. The next prime is 127969097527. The reversal of 127969097520 is 25790969721.

It is not an unprimeable number, because it can be changed into a prime (127969097527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2607771 + ... + 2656389.

It is an arithmetic number, because the mean of its divisors is an integer number (2707570008).

Almost surely, 2^127969097520 is an apocalyptic number.

127969097520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127969097520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216605600640).

127969097520 is an abundant number, since it is smaller than the sum of its proper divisors (305242103760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127969097520 is a wasteful number, since it uses less digits than its factorization.

127969097520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49643 (or 49637 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 57.

The spelling of 127969097520 in words is "one hundred twenty-seven billion, nine hundred sixty-nine million, ninety-seven thousand, five hundred twenty".