6564487907 has 2 divisors, whose sum is σ = 6564487908. Its totient is φ = 6564487906.

The previous prime is 6564487903. The next prime is 6564487931. The reversal of 6564487907 is 7097844656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6564487907 - 2² = 6564487903 is a prime.

It is a super-2 number, since 2×6564487907² = 86185002962298481298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6564487903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3282243953 + 3282243954.

It is an arithmetic number, because the mean of its divisors is an integer number (3282243954).

Almost surely, 2^6564487907 is an apocalyptic number.

6564487907 is a deficient number, since it is larger than the sum of its proper divisors (1).

6564487907 is an equidigital number, since it uses as much as digits as its factorization.

6564487907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10160640, while the sum is 56.

The square root of 6564487907 is about 81021.5274294431. The cubic root of 6564487907 is about 1872.4071212985.

The spelling of 6564487907 in words is "six billion, five hundred sixty-four million, four hundred eighty-seven thousand, nine hundred seven".