11768740236657 has 12 divisors (see below), whose sum is σ = 17002418117620. Its totient is φ = 7844383748448.

The previous prime is 11768740236653. The next prime is 11768740236683. The reversal of 11768740236657 is 75663204786711.

11768740236657 is a `hidden beast` number, since 1 + 1 + 76 + 87 + 402 + 36 + 6 + 57 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10010997248256 + 1757742988401 = 3164016^2 + 1325799^2 .

It is not a de Polignac number, because 11768740236657 - 2² = 11768740236653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11768740236594 and 11768740236603.

It is not an unprimeable number, because it can be changed into a prime (11768740236653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120204682 + ... + 120302547.

Almost surely, 2^{11768740236657} is an apocalyptic number.

It is an amenable number.

11768740236657 is a deficient number, since it is larger than the sum of its proper divisors (5233677880963).

11768740236657 is a wasteful number, since it uses less digits than its factorization.

11768740236657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240512672 (or 240512669 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 63.

The spelling of 11768740236657 in words is "eleven trillion, seven hundred sixty-eight billion, seven hundred forty million, two hundred thirty-six thousand, six hundred fifty-seven".