6563321948 has 6 divisors (see below), whose sum is σ = 11485813416. Its totient is φ = 3281660972.

The previous prime is 6563321927. The next prime is 6563321957. The reversal of 6563321948 is 8491233656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820415240 + ... + 820415247.

It is an arithmetic number, because the mean of its divisors is an integer number (1914302236).

Almost surely, 2^6563321948 is an apocalyptic number.

It is an amenable number.

6563321948 is a deficient number, since it is larger than the sum of its proper divisors (4922491468).

6563321948 is a wasteful number, since it uses less digits than its factorization.

6563321948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640830491 (or 1640830489 counting only the distinct ones).

The product of its digits is 933120, while the sum is 47.

The square root of 6563321948 is about 81014.3317444512. The cubic root of 6563321948 is about 1872.2962581597.

The spelling of 6563321948 in words is "six billion, five hundred sixty-three million, three hundred twenty-one thousand, nine hundred forty-eight".