128829554380199 has 2 divisors, whose sum is σ = 128829554380200. Its totient is φ = 128829554380198.

The previous prime is 128829554380123. The next prime is 128829554380231. The reversal of 128829554380199 is 991083455928821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128829554380199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128829554380399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64414777190099 + 64414777190100.

It is an arithmetic number, because the mean of its divisors is an integer number (64414777190100).

Almost surely, 2^{128829554380199} is an apocalyptic number.

128829554380199 is a deficient number, since it is larger than the sum of its proper divisors (1).

128829554380199 is an equidigital number, since it uses as much as digits as its factorization.

128829554380199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 447897600, while the sum is 74.

The spelling of 128829554380199 in words is "one hundred twenty-eight trillion, eight hundred twenty-nine billion, five hundred fifty-four million, three hundred eighty thousand, one hundred ninety-nine".