11987853662068 has 12 divisors (see below), whose sum is σ = 20979529786852. Its totient is φ = 5993702294400.

The previous prime is 11987853662027. The next prime is 11987853662087. The reversal of 11987853662068 is 86026635878911.

It can be written as a sum of positive squares in 2 ways, for example, as 6347285661924 + 5640568000144 = 2519382^2 + 2374988^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11987853661988 and 11987853662006.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 56014005 + ... + 56227612.

Almost surely, 2^{11987853662068} is an apocalyptic number.

It is an amenable number.

11987853662068 is a deficient number, since it is larger than the sum of its proper divisors (8991676124784).

11987853662068 is a wasteful number, since it uses less digits than its factorization.

11987853662068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112268322 (or 112268320 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 70.

The spelling of 11987853662068 in words is "eleven trillion, nine hundred eighty-seven billion, eight hundred fifty-three million, six hundred sixty-two thousand, sixty-eight".