1968963968 has 16 divisors (see below), whose sum is σ = 3922545660. Its totient is φ = 984481920.

The previous prime is 1968963947. The next prime is 1968964003. The reversal of 1968963968 is 8693698691.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7691138 + ... + 7691393.

Almost surely, 2^1968963968 is an apocalyptic number.

It is an amenable number.

1968963968 is a deficient number, since it is larger than the sum of its proper divisors (1953581692).

1968963968 is an equidigital number, since it uses as much as digits as its factorization.

1968963968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15382545 (or 15382533 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 65.

The square root of 1968963968 is about 44373.0094539462. The cubic root of 1968963968 is about 1253.3698867665.

The spelling of 1968963968 in words is "one billion, nine hundred sixty-eight million, nine hundred sixty-three thousand, nine hundred sixty-eight".