128633425449996 has 48 divisors (see below), whose sum is σ = 304630323750144. Its totient is φ = 42237024050496.

The previous prime is 128633425449967. The next prime is 128633425450021. The reversal of 128633425449996 is 699944524336821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40755406 + ... + 43798058.

It is an arithmetic number, because the mean of its divisors is an integer number (6346465078128).

Almost surely, 2^{128633425449996} is an apocalyptic number.

It is an amenable number.

128633425449996 is an abundant number, since it is smaller than the sum of its proper divisors (175996898300148).

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

128633425449996 is a wasteful number, since it uses less digits than its factorization.

128633425449996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095310 (or 3095308 counting only the distinct ones).

The product of its digits is 2418647040, while the sum is 75.

The spelling of 128633425449996 in words is "one hundred twenty-eight trillion, six hundred thirty-three billion, four hundred twenty-five million, four hundred forty-nine thousand, nine hundred ninety-six".