128111241864 has 32 divisors (see below), whose sum is σ = 320811049440. Its totient is φ = 42632688000.

The previous prime is 128111241833. The next prime is 128111241871. The reversal of 128111241864 is 468142111821.

It is a nude number because it is divisible by every one of its digits.

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, 4426482 + ... + 4455329.

It is an arithmetic number, because the mean of its divisors is an integer number (10025345295).

Almost surely, 2^128111241864 is an apocalyptic number.

It is an amenable number.

128111241864 is an abundant number, since it is smaller than the sum of its proper divisors (192699807576).

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

128111241864 is a wasteful number, since it uses less digits than its factorization.

128111241864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8882421 (or 8882417 counting only the distinct ones).

The product of its digits is 24576, while the sum is 39.

The spelling of 128111241864 in words is "one hundred twenty-eight billion, one hundred eleven million, two hundred forty-one thousand, eight hundred sixty-four".