3197743668 has 144 divisors (see below), whose sum is σ = 9541668864. Its totient is φ = 883975680.

The previous prime is 3197743663. The next prime is 3197743733. The reversal of 3197743668 is 8663477913.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3197743663) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1310946 + ... + 1313382.

Almost surely, 2^3197743668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3197743668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4770834432).

3197743668 is an abundant number, since it is smaller than the sum of its proper divisors (6343925196).

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

3197743668 is a wasteful number, since it uses less digits than its factorization.

3197743668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622 (or 2617 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 3197743668 is about 56548.5956324293. The cubic root of 3197743668 is about 1473.2661680967.

The spelling of 3197743668 in words is "three billion, one hundred ninety-seven million, seven hundred forty-three thousand, six hundred sixty-eight".