128309668083 has 32 divisors (see below), whose sum is σ = 201715084800. Its totient is φ = 80433844128.

The previous prime is 128309668073. The next prime is 128309668103. The reversal of 128309668083 is 380866903821.

It is a happy number.

128309668083 is a `hidden beast` number, since 128 + 309 + 66 + 80 + 83 = 666.

It is not a de Polignac number, because 128309668083 - 2¹⁷ = 128309537011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128309668063) 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, 1714360 + ... + 1787637.

It is an arithmetic number, because the mean of its divisors is an integer number (6303596400).

Almost surely, 2^128309668083 is an apocalyptic number.

128309668083 is a deficient number, since it is larger than the sum of its proper divisors (73405416717).

128309668083 is a wasteful number, since it uses less digits than its factorization.

128309668083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502088 (or 3502082 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 128309668083 in words is "one hundred twenty-eight billion, three hundred nine million, six hundred sixty-eight thousand, eighty-three".