487261953209 has 2 divisors, whose sum is σ = 487261953210. Its totient is φ = 487261953208.

The previous prime is 487261953097. The next prime is 487261953293. The reversal of 487261953209 is 902359162784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 469286652025 + 17975301184 = 685045^2 + 134072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487261953209 is a prime.

It is a super-2 number, since 2×487261953209² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (487261653209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243630976604 + 243630976605.

It is an arithmetic number, because the mean of its divisors is an integer number (243630976605).

It is a 2-persistent number, because it is pandigital, and so is 2⋅487261953209 = 974523906418, but 3⋅487261953209 = 1461785859627 is not.

Almost surely, 2^487261953209 is an apocalyptic number.

It is an amenable number.

487261953209 is a deficient number, since it is larger than the sum of its proper divisors (1).

487261953209 is an equidigital number, since it uses as much as digits as its factorization.

487261953209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 487261953209 in words is "four hundred eighty-seven billion, two hundred sixty-one million, nine hundred fifty-three thousand, two hundred nine".