127845559720 has 16 divisors (see below), whose sum is σ = 287652509460. Its totient is φ = 51138223872.

The previous prime is 127845559613. The next prime is 127845559729. The reversal of 127845559720 is 27955548721.

It can be written as a sum of positive squares in 2 ways, for example, as 120593674756 + 7251884964 = 347266^2 + 85158^2 .

It is not an unprimeable number, because it can be changed into a prime (127845559729) 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 3 ways as a sum of consecutive naturals, for example, 1598069457 + ... + 1598069536.

Almost surely, 2^127845559720 is an apocalyptic number.

127845559720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127845559720 is an abundant number, since it is smaller than the sum of its proper divisors (159806949740).

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

127845559720 is a wasteful number, since it uses less digits than its factorization.

127845559720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196139004 (or 3196139000 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 55.

The spelling of 127845559720 in words is "one hundred twenty-seven billion, eight hundred forty-five million, five hundred fifty-nine thousand, seven hundred twenty".