128769433185227 has 2 divisors, whose sum is σ = 128769433185228. Its totient is φ = 128769433185226.

The previous prime is 128769433185181. The next prime is 128769433185299. The reversal of 128769433185227 is 722581334967821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128769433185227 - 2⁸ = 128769433184971 is a prime.

It is not a weakly prime, because it can be changed into another prime (128769433785227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64384716592613 + 64384716592614.

It is an arithmetic number, because the mean of its divisors is an integer number (64384716592614).

Almost surely, 2^{128769433185227} is an apocalyptic number.

128769433185227 is a deficient number, since it is larger than the sum of its proper divisors (1).

128769433185227 is an equidigital number, since it uses as much as digits as its factorization.

128769433185227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 243855360, while the sum is 68.

The spelling of 128769433185227 in words is "one hundred twenty-eight trillion, seven hundred sixty-nine billion, four hundred thirty-three million, one hundred eighty-five thousand, two hundred twenty-seven".