128769433185069 has 12 divisors (see below), whose sum is σ = 186054096384156. Its totient is φ = 85821456172032.

The previous prime is 128769433185037. The next prime is 128769433185079. The reversal of 128769433185069 is 960581334967821.

128769433185069 is a `hidden beast` number, since 1 + 2 + 8 + 7 + 6 + 9 + 433 + 185 + 0 + 6 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3173973849225 + 125595459335844 = 1781565^2 + 11206938^2 .

It is not a de Polignac number, because 128769433185069 - 2⁵ = 128769433185037 is a prime.

It is a super-2 number, since 2×128769433185069² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128769433184988 and 128769433185006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128769433185079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2069351994 + ... + 2069414219.

It is an arithmetic number, because the mean of its divisors is an integer number (15504508032013).

It is a 1-persistent number, because it is pandigital, but 2⋅128769433185069 = 257538866370138 is not.

Almost surely, 2^{128769433185069} is an apocalyptic number.

It is an amenable number.

128769433185069 is a deficient number, since it is larger than the sum of its proper divisors (57284663199087).

128769433185069 is a wasteful number, since it uses less digits than its factorization.

128769433185069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138769676 (or 4138769673 counting only the distinct ones).

The product of its (nonzero) digits is 470292480, while the sum is 72.

The spelling of 128769433185069 in words is "one hundred twenty-eight trillion, seven hundred sixty-nine billion, four hundred thirty-three million, one hundred eighty-five thousand, sixty-nine".