128106068946 has 16 divisors (see below), whose sum is σ = 256870785600. Its totient is φ = 42592248368.

The previous prime is 128106068941. The next prime is 128106068957. The reversal of 128106068946 is 649860601821.

It is a super-2 number, since 2×128106068946² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128106068941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27441126 + ... + 27445793.

It is an arithmetic number, because the mean of its divisors is an integer number (16054424100).

Almost surely, 2^128106068946 is an apocalyptic number.

128106068946 is an abundant number, since it is smaller than the sum of its proper divisors (128764716654).

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

128106068946 is a wasteful number, since it uses less digits than its factorization.

128106068946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54887313.

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 128106068946 in words is "one hundred twenty-eight billion, one hundred six million, sixty-eight thousand, nine hundred forty-six".