11609687609668 has 6 divisors (see below), whose sum is σ = 20316953316926. Its totient is φ = 5804843804832.

The previous prime is 11609687609647. The next prime is 11609687609713. The reversal of 11609687609668 is 86690678690611.

It can be written as a sum of positive squares in only one way, i.e., 9985612640004 + 1624074969664 = 3160002^2 + 1274392^2 .

It is a super-4 number, since 4×11609687609668⁴ (a number of 53 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11609687609668.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1451210951205 + ... + 1451210951212.

Almost surely, 2^{11609687609668} is an apocalyptic number.

It is an amenable number.

11609687609668 is a deficient number, since it is larger than the sum of its proper divisors (8707265707258).

11609687609668 is a wasteful number, since it uses less digits than its factorization.

11609687609668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902421902421 (or 2902421902419 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 73.

The spelling of 11609687609668 in words is "eleven trillion, six hundred nine billion, six hundred eighty-seven million, six hundred nine thousand, six hundred sixty-eight".