128010129951779 has 2 divisors, whose sum is σ = 128010129951780. Its totient is φ = 128010129951778.

The previous prime is 128010129951773. The next prime is 128010129951811. The reversal of 128010129951779 is 977159921010821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128010129951779 - 2²⁴ = 128010113174563 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (128010129951773) by changing a digit.

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 as a sum of consecutive naturals, namely, 64005064975889 + 64005064975890.

It is an arithmetic number, because the mean of its divisors is an integer number (64005064975890).

Almost surely, 2^{128010129951779} is an apocalyptic number.

128010129951779 is a deficient number, since it is larger than the sum of its proper divisors (1).

128010129951779 is an equidigital number, since it uses as much as digits as its factorization.

128010129951779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5715360, while the sum is 62.

The spelling of 128010129951779 in words is "one hundred twenty-eight trillion, ten billion, one hundred twenty-nine million, nine hundred fifty-one thousand, seven hundred seventy-nine".