1982719054868 has 24 divisors (see below), whose sum is σ = 3478699732704. Its totient is φ = 988807024800.

The previous prime is 1982719054867. The next prime is 1982719054903. The reversal of 1982719054868 is 8684509172891.

It is a junction number, because it is equal to n+sod(n) for n = 1982719054798 and 1982719054807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982719054867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3383771 + ... + 3926237.

It is an arithmetic number, because the mean of its divisors is an integer number (144945822196).

Almost surely, 2^{1982719054868} is an apocalyptic number.

It is an amenable number.

1982719054868 is a deficient number, since it is larger than the sum of its proper divisors (1495980677836).

1982719054868 is a wasteful number, since it uses less digits than its factorization.

1982719054868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544823 (or 544821 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 68.

The spelling of 1982719054868 in words is "one trillion, nine hundred eighty-two billion, seven hundred nineteen million, fifty-four thousand, eight hundred sixty-eight".