6646457463587 has 2 divisors, whose sum is σ = 6646457463588. Its totient is φ = 6646457463586.

The previous prime is 6646457463533. The next prime is 6646457463637. The reversal of 6646457463587 is 7853647546466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6646457463587 - 2¹⁰ = 6646457462563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6646457463587.

It is not a weakly prime, because it can be changed into another prime (6646457463517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3323228731793 + 3323228731794.

It is an arithmetic number, because the mean of its divisors is an integer number (3323228731794).

Almost surely, 2^{6646457463587} is an apocalyptic number.

6646457463587 is a deficient number, since it is larger than the sum of its proper divisors (1).

6646457463587 is an equidigital number, since it uses as much as digits as its factorization.

6646457463587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2438553600, while the sum is 71.

The spelling of 6646457463587 in words is "six trillion, six hundred forty-six billion, four hundred fifty-seven million, four hundred sixty-three thousand, five hundred eighty-seven".