128756330411563 has 2 divisors, whose sum is σ = 128756330411564. Its totient is φ = 128756330411562.

The previous prime is 128756330411557. The next prime is 128756330411629. The reversal of 128756330411563 is 365114033657821.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128756330411563 is a prime.

It is not a weakly prime, because it can be changed into another prime (128756330411503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64378165205781 + 64378165205782.

It is an arithmetic number, because the mean of its divisors is an integer number (64378165205782).

Almost surely, 2^{128756330411563} is an apocalyptic number.

128756330411563 is a deficient number, since it is larger than the sum of its proper divisors (1).

128756330411563 is an equidigital number, since it uses as much as digits as its factorization.

128756330411563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 128756330411563 in words is "one hundred twenty-eight trillion, seven hundred fifty-six billion, three hundred thirty million, four hundred eleven thousand, five hundred sixty-three".