128110489969 has 32 divisors (see below), whose sum is σ = 166999117824. Its totient is φ = 95295583680.

The previous prime is 128110489967. The next prime is 128110490023. The reversal of 128110489969 is 969984011821.

It is not a de Polignac number, because 128110489969 - 2¹ = 128110489967 is a prime.

It is a super-2 number, since 2×128110489969² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128110489961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 818907 + ... + 962719.

It is an arithmetic number, because the mean of its divisors is an integer number (5218722432).

Almost surely, 2^128110489969 is an apocalyptic number.

It is an amenable number.

128110489969 is a deficient number, since it is larger than the sum of its proper divisors (38888627855).

128110489969 is a wasteful number, since it uses less digits than its factorization.

128110489969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144357.

The product of its (nonzero) digits is 2239488, while the sum is 58.

The spelling of 128110489969 in words is "one hundred twenty-eight billion, one hundred ten million, four hundred eighty-nine thousand, nine hundred sixty-nine".