2068666748868 has 24 divisors (see below), whose sum is σ = 4863735565920. Its totient is φ = 684291799360.

The previous prime is 2068666748851. The next prime is 2068666748873. The reversal of 2068666748868 is 8688476668602.

It is a self number, because there is not a number n which added to its sum of digits gives 2068666748868.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657971313 + ... + 657974456.

It is an arithmetic number, because the mean of its divisors is an integer number (202655648580).

Almost surely, 2^{2068666748868} is an apocalyptic number.

It is an amenable number.

2068666748868 is an abundant number, since it is smaller than the sum of its proper divisors (2795068817052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2068666748868 is a wasteful number, since it uses less digits than its factorization.

2068666748868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315945907 (or 1315945905 counting only the distinct ones).

The product of its (nonzero) digits is 1783627776, while the sum is 75.

The spelling of 2068666748868 in words is "two trillion, sixty-eight billion, six hundred sixty-six million, seven hundred forty-eight thousand, eight hundred sixty-eight".