6431930968 has 8 divisors (see below), whose sum is σ = 12059870580. Its totient is φ = 3215965480.

The previous prime is 6431930963. The next prime is 6431930971. The reversal of 6431930968 is 8690391346.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6431930963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401995678 + ... + 401995693.

Almost surely, 2^6431930968 is an apocalyptic number.

It is an amenable number.

6431930968 is a deficient number, since it is larger than the sum of its proper divisors (5627939612).

6431930968 is a wasteful number, since it uses less digits than its factorization.

6431930968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803991377 (or 803991373 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 49.

The square root of 6431930968 is about 80199.3202464959. The cubic root of 6431930968 is about 1859.7181297151.

The spelling of 6431930968 in words is "six billion, four hundred thirty-one million, nine hundred thirty thousand, nine hundred sixty-eight".