128730605868467 has 2 divisors, whose sum is σ = 128730605868468. Its totient is φ = 128730605868466.

The previous prime is 128730605868437. The next prime is 128730605868497. The reversal of 128730605868467 is 764868506037821.

It is a balanced prime because it is at equal distance from previous prime (128730605868437) and next prime (128730605868497).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128730605868467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128730605868467.

It is not a weakly prime, because it can be changed into another prime (128730605868437) 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, 64365302934233 + 64365302934234.

It is an arithmetic number, because the mean of its divisors is an integer number (64365302934234).

Almost surely, 2^{128730605868467} is an apocalyptic number.

128730605868467 is a deficient number, since it is larger than the sum of its proper divisors (1).

128730605868467 is an equidigital number, since it uses as much as digits as its factorization.

128730605868467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 650280960, while the sum is 71.

The spelling of 128730605868467 in words is "one hundred twenty-eight trillion, seven hundred thirty billion, six hundred five million, eight hundred sixty-eight thousand, four hundred sixty-seven".