6469639716 has 12 divisors (see below), whose sum is σ = 15095826032. Its totient is φ = 2156546568.

The previous prime is 6469639711. The next prime is 6469639717. The reversal of 6469639716 is 6179369646.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (6469639711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269568310 + ... + 269568333.

Almost surely, 2^6469639716 is an apocalyptic number.

It is an amenable number.

6469639716 is an abundant number, since it is smaller than the sum of its proper divisors (8626186316).

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

6469639716 is a wasteful number, since it uses less digits than its factorization.

6469639716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539136650 (or 539136648 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 57.

The square root of 6469639716 is about 80434.0706168723. The cubic root of 6469639716 is about 1863.3453991693.

The spelling of 6469639716 in words is "six billion, four hundred sixty-nine million, six hundred thirty-nine thousand, seven hundred sixteen".