128111740824 has 64 divisors (see below), whose sum is σ = 334283293440. Its totient is φ = 40837596800.

The previous prime is 128111740817. The next prime is 128111740829. The reversal of 128111740824 is 428047111821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128111740829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2534599 + ... + 2584649.

It is an arithmetic number, because the mean of its divisors is an integer number (5223176460).

Almost surely, 2^128111740824 is an apocalyptic number.

It is an amenable number.

128111740824 is an abundant number, since it is smaller than the sum of its proper divisors (206171552616).

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

128111740824 is a wasteful number, since it uses less digits than its factorization.

128111740824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54720 (or 54716 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 39.

The spelling of 128111740824 in words is "one hundred twenty-eight billion, one hundred eleven million, seven hundred forty thousand, eight hundred twenty-four".