128007813184756 has 24 divisors (see below), whose sum is σ = 227823899940000. Its totient is φ = 62915397820704.

The previous prime is 128007813184729. The next prime is 128007813184789. The reversal of 128007813184756 is 657481318700821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 128007813184694 and 128007813184703.

It is a congruent number.

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, 11907106 + ... + 19944793.

It is an arithmetic number, because the mean of its divisors is an integer number (9492662497500).

Almost surely, 2^{128007813184756} is an apocalyptic number.

It is an amenable number.

128007813184756 is a deficient number, since it is larger than the sum of its proper divisors (99816086755244).

128007813184756 is a wasteful number, since it uses less digits than its factorization.

128007813184756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31868991 (or 31868989 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 61.

The spelling of 128007813184756 in words is "one hundred twenty-eight trillion, seven billion, eight hundred thirteen million, one hundred eighty-four thousand, seven hundred fifty-six".