487315648669 has 2 divisors, whose sum is σ = 487315648670. Its totient is φ = 487315648668.

The previous prime is 487315648649. The next prime is 487315648739. The reversal of 487315648669 is 966846513784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 473842243044 + 13473405625 = 688362^2 + 116075^2 .

It is a cyclic number.

It is not a de Polignac number, because 487315648669 - 2¹¹ = 487315646621 is a prime.

It is a super-2 number, since 2×487315648669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487315648609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243657824334 + 243657824335.

It is an arithmetic number, because the mean of its divisors is an integer number (243657824335).

Almost surely, 2^487315648669 is an apocalyptic number.

It is an amenable number.

487315648669 is a deficient number, since it is larger than the sum of its proper divisors (1).

487315648669 is an equidigital number, since it uses as much as digits as its factorization.

487315648669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209018880, while the sum is 67.

The spelling of 487315648669 in words is "four hundred eighty-seven billion, three hundred fifteen million, six hundred forty-eight thousand, six hundred sixty-nine".