128376176138 has 16 divisors (see below), whose sum is σ = 224564740800. Its totient is φ = 55018360908.

The previous prime is 128376176113. The next prime is 128376176183. The reversal of 128376176138 is 831671673821.

It is a self number, because there is not a number n which added to its sum of digits gives 128376176138.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93567956 + ... + 93569327.

It is an arithmetic number, because the mean of its divisors is an integer number (14035296300).

Almost surely, 2^128376176138 is an apocalyptic number.

128376176138 is a deficient number, since it is larger than the sum of its proper divisors (96188564662).

128376176138 is an equidigital number, since it uses as much as digits as its factorization.

128376176138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187137306 (or 187137292 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 53.

The spelling of 128376176138 in words is "one hundred twenty-eight billion, three hundred seventy-six million, one hundred seventy-six thousand, one hundred thirty-eight".