128191173327 has 12 divisors (see below), whose sum is σ = 211617175120. Its totient is φ = 73252099008.

The previous prime is 128191173317. The next prime is 128191173337. The reversal of 128191173327 is 723371191821.

128191173327 is a `hidden beast` number, since 128 + 191 + 1 + 7 + 332 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (128191173317) and next prime (128191173337).

It is not a de Polignac number, because 128191173327 - 2¹¹ = 128191171279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128191173317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1017390202 + ... + 1017390327.

Almost surely, 2^128191173327 is an apocalyptic number.

128191173327 is a deficient number, since it is larger than the sum of its proper divisors (83426001793).

128191173327 is a wasteful number, since it uses less digits than its factorization.

128191173327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034780542 (or 2034780539 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The spelling of 128191173327 in words is "one hundred twenty-eight billion, one hundred ninety-one million, one hundred seventy-three thousand, three hundred twenty-seven".