127287772368 has 80 divisors (see below), whose sum is σ = 337870982016. Its totient is φ = 41263326720.

The previous prime is 127287772351. The next prime is 127287772369. The reversal of 127287772368 is 863277782721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127287772369) 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, 4088830 + ... + 4119842.

Almost surely, 2^127287772368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127287772368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168935491008).

127287772368 is an abundant number, since it is smaller than the sum of its proper divisors (210583209648).

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

127287772368 is a wasteful number, since it uses less digits than its factorization.

127287772368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33372 (or 33366 counting only the distinct ones).

The product of its digits is 22127616, while the sum is 60.

The spelling of 127287772368 in words is "one hundred twenty-seven billion, two hundred eighty-seven million, seven hundred seventy-two thousand, three hundred sixty-eight".