1993648966 has 8 divisors (see below), whose sum is σ = 2990822184. Its totient is φ = 996708240.

The previous prime is 1993648933. The next prime is 1993648991. The reversal of 1993648966 is 6698463991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34815 + ... + 72106.

It is an arithmetic number, because the mean of its divisors is an integer number (373852773).

Almost surely, 2^1993648966 is an apocalyptic number.

1993648966 is a deficient number, since it is larger than the sum of its proper divisors (997173218).

1993648966 is a wasteful number, since it uses less digits than its factorization.

1993648966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116246.

The product of its digits is 15116544, while the sum is 61.

The square root of 1993648966 is about 44650.2963707969. The cubic root of 1993648966 is about 1258.5860021696.

The spelling of 1993648966 in words is "one billion, nine hundred ninety-three million, six hundred forty-eight thousand, nine hundred sixty-six".