4542439663 has 2 divisors, whose sum is σ = 4542439664. Its totient is φ = 4542439662.

The previous prime is 4542439637. The next prime is 4542439667. The reversal of 4542439663 is 3669342454.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4542439663 - 2⁵ = 4542439631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4542439667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2271219831 + 2271219832.

It is an arithmetic number, because the mean of its divisors is an integer number (2271219832).

Almost surely, 2^4542439663 is an apocalyptic number.

4542439663 is a deficient number, since it is larger than the sum of its proper divisors (1).

4542439663 is an equidigital number, since it uses as much as digits as its factorization.

4542439663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 46.

The square root of 4542439663 is about 67397.6235708649. The cubic root of 4542439663 is about 1656.1374926439.

It can be divided in two parts, 454243966 and 3, that added together give a square (454243969 = 21313²).

The spelling of 4542439663 in words is "four billion, five hundred forty-two million, four hundred thirty-nine thousand, six hundred sixty-three".