128177486532 has 24 divisors (see below), whose sum is σ = 332312002400. Its totient is φ = 42725828808.

The previous prime is 128177486509. The next prime is 128177486581. The reversal of 128177486532 is 235684771821.

128177486532 is a `hidden beast` number, since 1 + 28 + 1 + 7 + 7 + 4 + 86 + 532 = 666.

128177486532 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×128177486532² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593414182 + ... + 593414397.

Almost surely, 2^128177486532 is an apocalyptic number.

128177486532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128177486532 is an abundant number, since it is smaller than the sum of its proper divisors (204134515868).

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

128177486532 is a wasteful number, since it uses less digits than its factorization.

128177486532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186828592 (or 1186828584 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 128177486532 in words is "one hundred twenty-eight billion, one hundred seventy-seven million, four hundred eighty-six thousand, five hundred thirty-two".