5636668237 has 2 divisors, whose sum is σ = 5636668238. Its totient is φ = 5636668236.

The previous prime is 5636668211. The next prime is 5636668253. The reversal of 5636668237 is 7328666365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5049381481 + 587286756 = 71059^2 + 24234^2 .

It is a cyclic number.

It is not a de Polignac number, because 5636668237 - 2¹⁵ = 5636635469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5636668537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2818334118 + 2818334119.

It is an arithmetic number, because the mean of its divisors is an integer number (2818334119).

Almost surely, 2^5636668237 is an apocalyptic number.

It is an amenable number.

5636668237 is a deficient number, since it is larger than the sum of its proper divisors (1).

5636668237 is an equidigital number, since it uses as much as digits as its factorization.

5636668237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 52.

The square root of 5636668237 is about 75077.7479483768. The cubic root of 5636668237 is about 1779.6755118011.

The spelling of 5636668237 in words is "five billion, six hundred thirty-six million, six hundred sixty-eight thousand, two hundred thirty-seven".