12677767554128 has 80 divisors (see below), whose sum is σ = 24819387546816. Its totient is φ = 6273141396480.

The previous prime is 12677767554121. The next prime is 12677767554161. The reversal of 12677767554128 is 82145576777621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12677767554121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787871363 + ... + 787887453.

Almost surely, 2^{12677767554128} is an apocalyptic number.

It is an amenable number.

12677767554128 is a deficient number, since it is larger than the sum of its proper divisors (12141619992688).

12677767554128 is a wasteful number, since it uses less digits than its factorization.

12677767554128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17532 (or 17526 counting only the distinct ones).

The product of its digits is 276595200, while the sum is 68.

The spelling of 12677767554128 in words is "twelve trillion, six hundred seventy-seven billion, seven hundred sixty-seven million, five hundred fifty-four thousand, one hundred twenty-eight".