127031789989 has 16 divisors (see below), whose sum is σ = 137410528192. Its totient is φ = 116740528128.

The previous prime is 127031789957. The next prime is 127031790023. The reversal of 127031789989 is 989987130721.

It is a cyclic number.

It is not a de Polignac number, because 127031789989 - 2⁵ = 127031789957 is a prime.

It is a super-2 number, since 2×127031789989² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127031789989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127031789189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4226914 + ... + 4256860.

It is an arithmetic number, because the mean of its divisors is an integer number (8588158012).

Almost surely, 2^127031789989 is an apocalyptic number.

It is an amenable number.

127031789989 is a deficient number, since it is larger than the sum of its proper divisors (10378738203).

127031789989 is a wasteful number, since it uses less digits than its factorization.

127031789989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31396.

The product of its (nonzero) digits is 13716864, while the sum is 64.

The spelling of 127031789989 in words is "one hundred twenty-seven billion, thirty-one million, seven hundred eighty-nine thousand, nine hundred eighty-nine".