128541117684 has 36 divisors (see below), whose sum is σ = 348897321024. Its totient is φ = 36726033456.

The previous prime is 128541117647. The next prime is 128541117703. The reversal of 128541117684 is 486711145821.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 109303084 + ... + 109304259.

Almost surely, 2^128541117684 is an apocalyptic number.

128541117684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

128541117684 is an abundant number, since it is smaller than the sum of its proper divisors (220356203340).

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

128541117684 is a wasteful number, since it uses less digits than its factorization.

128541117684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218607364 (or 218607355 counting only the distinct ones).

The product of its digits is 430080, while the sum is 48.

The spelling of 128541117684 in words is "one hundred twenty-eight billion, five hundred forty-one million, one hundred seventeen thousand, six hundred eighty-four".