4638243587 has 2 divisors, whose sum is σ = 4638243588. Its totient is φ = 4638243586.

The previous prime is 4638243553. The next prime is 4638243593. The reversal of 4638243587 is 7853428364.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4638243587 - 2²⁰ = 4637195011 is a prime.

It is not a weakly prime, because it can be changed into another prime (4638243517) 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, 2319121793 + 2319121794.

It is an arithmetic number, because the mean of its divisors is an integer number (2319121794).

Almost surely, 2^4638243587 is an apocalyptic number.

4638243587 is a deficient number, since it is larger than the sum of its proper divisors (1).

4638243587 is an equidigital number, since it uses as much as digits as its factorization.

4638243587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 50.

The square root of 4638243587 is about 68104.6517280575. The cubic root of 4638243587 is about 1667.6997011227.

The spelling of 4638243587 in words is "four billion, six hundred thirty-eight million, two hundred forty-three thousand, five hundred eighty-seven".