1968694108 has 12 divisors (see below), whose sum is σ = 3595006800. Its totient is φ = 941549312.

The previous prime is 1968694099. The next prime is 1968694193. The reversal of 1968694108 is 8014968691.

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 3 ways as a sum of consecutive naturals, for example, 10699333 + ... + 10699516.

It is an arithmetic number, because the mean of its divisors is an integer number (299583900).

Almost surely, 2^1968694108 is an apocalyptic number.

It is an amenable number.

1968694108 is a deficient number, since it is larger than the sum of its proper divisors (1626312692).

1968694108 is a wasteful number, since it uses less digits than its factorization.

1968694108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21398876 (or 21398874 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 52.

The square root of 1968694108 is about 44369.9685372888. The cubic root of 1968694108 is about 1253.3126231740.

The spelling of 1968694108 in words is "one billion, nine hundred sixty-eight million, six hundred ninety-four thousand, one hundred eight".