128258297550967 has 2 divisors, whose sum is σ = 128258297550968. Its totient is φ = 128258297550966.

The previous prime is 128258297550923. The next prime is 128258297550973. The reversal of 128258297550967 is 769055792852821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128258297550967 - 2³⁵ = 128223937812599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128258297550893 and 128258297550902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128258297550917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64129148775483 + 64129148775484.

It is an arithmetic number, because the mean of its divisors is an integer number (64129148775484).

Almost surely, 2^{128258297550967} is an apocalyptic number.

128258297550967 is a deficient number, since it is larger than the sum of its proper divisors (1).

128258297550967 is an equidigital number, since it uses as much as digits as its factorization.

128258297550967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096000, while the sum is 76.

The spelling of 128258297550967 in words is "one hundred twenty-eight trillion, two hundred fifty-eight billion, two hundred ninety-seven million, five hundred fifty thousand, nine hundred sixty-seven".