6343913872 has 10 divisors (see below), whose sum is σ = 12291333158. Its totient is φ = 3171956928.

The previous prime is 6343913869. The next prime is 6343913881. The reversal of 6343913872 is 2783193436.

It can be written as a sum of positive squares in only one way, i.e., 5573518336 + 770395536 = 74656^2 + 27756^2 .

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 as a sum of consecutive naturals, namely, 198247293 + ... + 198247324.

Almost surely, 2^6343913872 is an apocalyptic number.

It is an amenable number.

6343913872 is a deficient number, since it is larger than the sum of its proper divisors (5947419286).

6343913872 is a wasteful number, since it uses less digits than its factorization.

6343913872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396494625 (or 396494619 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 6343913872 is about 79648.6903344933. The cubic root of 6343913872 is about 1851.1960974129.

The spelling of 6343913872 in words is "six billion, three hundred forty-three million, nine hundred thirteen thousand, eight hundred seventy-two".