127869281320 has 48 divisors (see below), whose sum is σ = 316238709780. Its totient is φ = 46497918720.

The previous prime is 127869281317. The next prime is 127869281359. The reversal of 127869281320 is 23182968721.

It can be written as a sum of positive squares in 2 ways, for example, as 126253723684 + 1615557636 = 355322^2 + 40194^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13204797 + ... + 13214476.

Almost surely, 2^127869281320 is an apocalyptic number.

127869281320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127869281320 is an abundant number, since it is smaller than the sum of its proper divisors (188369428460).

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

127869281320 is a wasteful number, since it uses less digits than its factorization.

127869281320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26419306 (or 26419291 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 127869281320 in words is "one hundred twenty-seven billion, eight hundred sixty-nine million, two hundred eighty-one thousand, three hundred twenty".