1018563863 has 2 divisors, whose sum is σ = 1018563864. Its totient is φ = 1018563862.

The previous prime is 1018563853. The next prime is 1018563877. The reversal of 1018563863 is 3683658101.

It is a weak prime.

It is an emirp because it is prime and its reverse (3683658101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1018563863 - 2²⁰ = 1017515287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1018563863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1018563853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509281931 + 509281932.

It is an arithmetic number, because the mean of its divisors is an integer number (509281932).

Almost surely, 2^1018563863 is an apocalyptic number.

1018563863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1018563863 is an equidigital number, since it uses as much as digits as its factorization.

1018563863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 1018563863 is about 31914.9473287988. The cubic root of 1018563863 is about 1006.1500536355.

The spelling of 1018563863 in words is "one billion, eighteen million, five hundred sixty-three thousand, eight hundred sixty-three".