127320698881 has 8 divisors (see below), whose sum is σ = 128069636904. Its totient is φ = 126571910400.

The previous prime is 127320698821. The next prime is 127320698887. The reversal of 127320698881 is 188896023721.

It can be written as a sum of positive squares in 4 ways, for example, as 74070521281 + 53250177600 = 272159^2 + 230760^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 127320698881 - 2⁹ = 127320698369 is a prime.

It is a super-2 number, since 2×127320698881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127320698887) 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 7 ways as a sum of consecutive naturals, for example, 1992825 + ... + 2055721.

It is an arithmetic number, because the mean of its divisors is an integer number (16008704613).

Almost surely, 2^127320698881 is an apocalyptic number.

It is an amenable number.

127320698881 is a deficient number, since it is larger than the sum of its proper divisors (748938023).

127320698881 is a wasteful number, since it uses less digits than its factorization.

127320698881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74771.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 127320698881 in words is "one hundred twenty-seven billion, three hundred twenty million, six hundred ninety-eight thousand, eight hundred eighty-one".