1933656668 has 12 divisors (see below), whose sum is σ = 3385938360. Its totient is φ = 966245712.

The previous prime is 1933656617. The next prime is 1933656679. The reversal of 1933656668 is 8666563391.

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 3 ways as a sum of consecutive naturals, for example, 138146 + ... + 151497.

It is an arithmetic number, because the mean of its divisors is an integer number (282161530).

Almost surely, 2^1933656668 is an apocalyptic number.

It is an amenable number.

1933656668 is a deficient number, since it is larger than the sum of its proper divisors (1452281692).

1933656668 is a wasteful number, since it uses less digits than its factorization.

1933656668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291316 (or 291314 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 53.

The square root of 1933656668 is about 43973.3631645340. The cubic root of 1933656668 is about 1245.8328793616.

The spelling of 1933656668 in words is "one billion, nine hundred thirty-three million, six hundred fifty-six thousand, six hundred sixty-eight".