1968421116 has 24 divisors (see below), whose sum is σ = 4595466960. Its totient is φ = 655785472.

The previous prime is 1968421087. The next prime is 1968421123. The reversal of 1968421116 is 6111248691.

It is a congruent number.

It is an unprimeable number.

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, 20751 + ... + 66086.

It is an arithmetic number, because the mean of its divisors is an integer number (191477790).

Almost surely, 2^1968421116 is an apocalyptic number.

It is an amenable number.

1968421116 is an abundant number, since it is smaller than the sum of its proper divisors (2627045844).

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

1968421116 is a wasteful number, since it uses less digits than its factorization.

1968421116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88733 (or 88731 counting only the distinct ones).

The product of its digits is 20736, while the sum is 39.

The square root of 1968421116 is about 44366.8921156305. The cubic root of 1968421116 is about 1253.2546896545.

The spelling of 1968421116 in words is "one billion, nine hundred sixty-eight million, four hundred twenty-one thousand, one hundred sixteen".