463521856009 has 2 divisors, whose sum is σ = 463521856010. Its totient is φ = 463521856008.

The previous prime is 463521856001. The next prime is 463521856067. The reversal of 463521856009 is 900658125364.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459883353609 + 3638502400 = 678147^2 + 60320^2 .

It is a cyclic number.

It is not a de Polignac number, because 463521856009 - 2³ = 463521856001 is a prime.

It is not a weakly prime, because it can be changed into another prime (463521856001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231760928004 + 231760928005.

It is an arithmetic number, because the mean of its divisors is an integer number (231760928005).

Almost surely, 2^463521856009 is an apocalyptic number.

It is an amenable number.

463521856009 is a deficient number, since it is larger than the sum of its proper divisors (1).

463521856009 is an equidigital number, since it uses as much as digits as its factorization.

463521856009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 463521856009 in words is "four hundred sixty-three billion, five hundred twenty-one million, eight hundred fifty-six thousand, nine".