128287006321044 has 96 divisors (see below), whose sum is σ = 308486033856000. Its totient is φ = 41468045644800.

The previous prime is 128287006321039. The next prime is 128287006321093. The reversal of 128287006321044 is 440123600782821.

It is a super-3 number, since 3×128287006321044³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128287006320984 and 128287006321002.

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 31 ways as a sum of consecutive naturals, for example, 177654622 + ... + 178375274.

It is an arithmetic number, because the mean of its divisors is an integer number (3213396186000).

Almost surely, 2^{128287006321044} is an apocalyptic number.

It is an amenable number.

128287006321044 is an abundant number, since it is smaller than the sum of its proper divisors (180199027534956).

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

128287006321044 is a wasteful number, since it uses less digits than its factorization.

128287006321044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722881 (or 722879 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 128287006321044 in words is "one hundred twenty-eight trillion, two hundred eighty-seven billion, six million, three hundred twenty-one thousand, forty-four".