127761765280 has 96 divisors (see below), whose sum is σ = 315191326464. Its totient is φ = 48846944256.

The previous prime is 127761765253. The next prime is 127761765311. The reversal of 127761765280 is 82567167721.

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, 5312964 + ... + 5336956.

It is an arithmetic number, because the mean of its divisors is an integer number (3283242984).

Almost surely, 2^127761765280 is an apocalyptic number.

127761765280 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 127761765280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157595663232).

127761765280 is an abundant number, since it is smaller than the sum of its proper divisors (187429561184).

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

127761765280 is a wasteful number, since it uses less digits than its factorization.

127761765280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25478 (or 25470 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 127761765280 in words is "one hundred twenty-seven billion, seven hundred sixty-one million, seven hundred sixty-five thousand, two hundred eighty".