6563375473 has 12 divisors (see below), whose sum is σ = 6866755840. Its totient is φ = 6272879976.

The previous prime is 6563375461. The next prime is 6563375501. The reversal of 6563375473 is 3745733656.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-6563375473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6563345473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 748408 + ... + 757126.

Almost surely, 2^6563375473 is an apocalyptic number.

It is an amenable number.

6563375473 is a deficient number, since it is larger than the sum of its proper divisors (303380367).

6563375473 is a wasteful number, since it uses less digits than its factorization.

6563375473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10188 (or 10165 counting only the distinct ones).

The product of its digits is 4762800, while the sum is 49.

The square root of 6563375473 is about 81014.6620865631. The cubic root of 6563375473 is about 1872.3013477767.

The spelling of 6563375473 in words is "six billion, five hundred sixty-three million, three hundred seventy-five thousand, four hundred seventy-three".