128442606792 has 32 divisors (see below), whose sum is σ = 321126208800. Its totient is φ = 42811576704.

The previous prime is 128442606767. The next prime is 128442606823. The reversal of 128442606792 is 297606244821.

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, 257523 + ... + 568509.

It is an arithmetic number, because the mean of its divisors is an integer number (10035194025).

Almost surely, 2^128442606792 is an apocalyptic number.

128442606792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128442606792 is an abundant number, since it is smaller than the sum of its proper divisors (192683602008).

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

128442606792 is a wasteful number, since it uses less digits than its factorization.

128442606792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328205 (or 328201 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 128442606792 in words is "one hundred twenty-eight billion, four hundred forty-two million, six hundred six thousand, seven hundred ninety-two".