6517427912 has 8 divisors (see below), whose sum is σ = 12220177350. Its totient is φ = 3258713952.

The previous prime is 6517427857. The next prime is 6517427929. The reversal of 6517427912 is 2197247156.

It can be written as a sum of positive squares in only one way, i.e., 6324384676 + 193043236 = 79526^2 + 13894^2 .

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

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, 407339237 + ... + 407339252.

Almost surely, 2^6517427912 is an apocalyptic number.

It is an amenable number.

6517427912 is a deficient number, since it is larger than the sum of its proper divisors (5702749438).

6517427912 is a wasteful number, since it uses less digits than its factorization.

6517427912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814678495 (or 814678491 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The square root of 6517427912 is about 80730.5884532003. The cubic root of 6517427912 is about 1867.9220354550.

The spelling of 6517427912 in words is "six billion, five hundred seventeen million, four hundred twenty-seven thousand, nine hundred twelve".