8463603881 has 2 divisors, whose sum is σ = 8463603882. Its totient is φ = 8463603880.

The previous prime is 8463603851. The next prime is 8463603893. The reversal of 8463603881 is 1883063648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6945722281 + 1517881600 = 83341^2 + 38960^2 .

It is a cyclic number.

It is not a de Polignac number, because 8463603881 - 2¹⁸ = 8463341737 is a prime.

It is a super-2 number, since 2×8463603881² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8463603851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4231801940 + 4231801941.

It is an arithmetic number, because the mean of its divisors is an integer number (4231801941).

Almost surely, 2^8463603881 is an apocalyptic number.

It is an amenable number.

8463603881 is a deficient number, since it is larger than the sum of its proper divisors (1).

8463603881 is an equidigital number, since it uses as much as digits as its factorization.

8463603881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 47.

The square root of 8463603881 is about 91997.8471541590. The cubic root of 8463603881 is about 2037.9105128210.

The spelling of 8463603881 in words is "eight billion, four hundred sixty-three million, six hundred three thousand, eight hundred eighty-one".