1968505908 has 24 divisors (see below), whose sum is σ = 4594024512. Its totient is φ = 656048064.

The previous prime is 1968505843. The next prime is 1968505919. The reversal of 1968505908 is 8095058691.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74016 + ... + 97032.

It is an arithmetic number, because the mean of its divisors is an integer number (191417688).

Almost surely, 2^1968505908 is an apocalyptic number.

It is an amenable number.

1968505908 is an abundant number, since it is smaller than the sum of its proper divisors (2625518604).

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

1968505908 is a wasteful number, since it uses less digits than its factorization.

1968505908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30151 (or 30149 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 51.

The square root of 1968505908 is about 44367.8476827533. The cubic root of 1968505908 is about 1253.2726845244.

The spelling of 1968505908 in words is "one billion, nine hundred sixty-eight million, five hundred five thousand, nine hundred eight".