1982768276666 has 16 divisors (see below), whose sum is σ = 3050696183040. Its totient is φ = 966053770320.

The previous prime is 1982768276557. The next prime is 1982768276737. The reversal of 1982768276666 is 6666728672891.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1982768276593 and 1982768276602.

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, 46033670 + ... + 46076721.

It is an arithmetic number, because the mean of its divisors is an integer number (190668511440).

Almost surely, 2^{1982768276666} is an apocalyptic number.

1982768276666 is a deficient number, since it is larger than the sum of its proper divisors (1067927906374).

1982768276666 is a wasteful number, since it uses less digits than its factorization.

1982768276666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92110669.

The product of its digits is 877879296, while the sum is 74.

The spelling of 1982768276666 in words is "one trillion, nine hundred eighty-two billion, seven hundred sixty-eight million, two hundred seventy-six thousand, six hundred sixty-six".