1968199008 has 48 divisors (see below), whose sum is σ = 5169217536. Its totient is φ = 655724160.

The previous prime is 1968199007. The next prime is 1968199031. The reversal of 1968199008 is 8009918691.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968199001) by changing a digit.

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, 236193 + ... + 244383.

It is an arithmetic number, because the mean of its divisors is an integer number (107692032).

Almost surely, 2^1968199008 is an apocalyptic number.

It is an amenable number.

1968199008 is an abundant number, since it is smaller than the sum of its proper divisors (3201018528).

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

1968199008 is a wasteful number, since it uses less digits than its factorization.

1968199008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10707 (or 10699 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 51.

The square root of 1968199008 is about 44364.3889623198. The cubic root of 1968199008 is about 1253.2075506284.

The spelling of 1968199008 in words is "one billion, nine hundred sixty-eight million, one hundred ninety-nine thousand, eight".