4921538563 has 2 divisors, whose sum is σ = 4921538564. Its totient is φ = 4921538562.

The previous prime is 4921538527. The next prime is 4921538627. The reversal of 4921538563 is 3658351294.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4921538563 - 2²⁵ = 4887984131 is a prime.

It is a super-2 number, since 2×4921538563² = 48443083654192209938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4921532563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2460769281 + 2460769282.

It is an arithmetic number, because the mean of its divisors is an integer number (2460769282).

Almost surely, 2^4921538563 is an apocalyptic number.

4921538563 is a deficient number, since it is larger than the sum of its proper divisors (1).

4921538563 is an equidigital number, since it uses as much as digits as its factorization.

4921538563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 46.

The square root of 4921538563 is about 70153.6781858229. The cubic root of 4921538563 is about 1700.9842700381.

It can be divided in two parts, 49215 and 38563, that added together give a palindrome (87778).

The spelling of 4921538563 in words is "four billion, nine hundred twenty-one million, five hundred thirty-eight thousand, five hundred sixty-three".