8487056430689 has 2 divisors, whose sum is σ = 8487056430690. Its totient is φ = 8487056430688.

The previous prime is 8487056430631. The next prime is 8487056430703. The reversal of 8487056430689 is 9860346507848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6087159725089 + 2399896705600 = 2467217^2 + 1549160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8487056430689 is a prime.

It is a super-2 number, since 2×8487056430689² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8487056430889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4243528215344 + 4243528215345.

It is an arithmetic number, because the mean of its divisors is an integer number (4243528215345).

Almost surely, 2^{8487056430689} is an apocalyptic number.

It is an amenable number.

8487056430689 is a deficient number, since it is larger than the sum of its proper divisors (1).

8487056430689 is an equidigital number, since it uses as much as digits as its factorization.

8487056430689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 278691840, while the sum is 68.

The spelling of 8487056430689 in words is "eight trillion, four hundred eighty-seven billion, fifty-six million, four hundred thirty thousand, six hundred eighty-nine".