12756511051677 has 6 divisors (see below), whose sum is σ = 18426071519102. Its totient is φ = 8504340701112.

The previous prime is 12756511051667. The next prime is 12756511051679. The reversal of 12756511051677 is 77615011565721.

It is a happy number.

12756511051677 is a `hidden beast` number, since 1 + 2 + 7 + 5 + 6 + 5 + 110 + 516 + 7 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12397870565721 + 358640485956 = 3521061^2 + 598866^2 .

It is not a de Polignac number, because 12756511051677 - 2²² = 12756506857373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12756511051679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 708695058418 + ... + 708695058435.

Almost surely, 2^{12756511051677} is an apocalyptic number.

It is an amenable number.

12756511051677 is a deficient number, since it is larger than the sum of its proper divisors (5669560467425).

12756511051677 is a wasteful number, since it uses less digits than its factorization.

12756511051677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417390116859 (or 1417390116856 counting only the distinct ones).

The product of its (nonzero) digits is 3087000, while the sum is 54.

The spelling of 12756511051677 in words is "twelve trillion, seven hundred fifty-six billion, five hundred eleven million, fifty-one thousand, six hundred seventy-seven".