128812773537135 has 24 divisors (see below), whose sum is σ = 224566083821664. Its totient is φ = 68303035212480.

The previous prime is 128812773537109. The next prime is 128812773537139. The reversal of 128812773537135 is 531735377218821.

128812773537135 is a `hidden beast` number, since 1 + 2 + 8 + 8 + 1 + 27 + 73 + 537 + 1 + 3 + 5 = 666.

It is not a de Polignac number, because 128812773537135 - 2²³ = 128812765148527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128812773537139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8273131171 + ... + 8273146740.

It is an arithmetic number, because the mean of its divisors is an integer number (9356920159236).

Almost surely, 2^{128812773537135} is an apocalyptic number.

128812773537135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128812773537135 is a deficient number, since it is larger than the sum of its proper divisors (95753310284529).

128812773537135 is a wasteful number, since it uses less digits than its factorization.

128812773537135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16546278095 (or 16546278092 counting only the distinct ones).

The product of its digits is 59270400, while the sum is 63.

The spelling of 128812773537135 in words is "one hundred twenty-eight trillion, eight hundred twelve billion, seven hundred seventy-three million, five hundred thirty-seven thousand, one hundred thirty-five".