5638753489 has 2 divisors, whose sum is σ = 5638753490. Its totient is φ = 5638753488.

The previous prime is 5638753459. The next prime is 5638753537. The reversal of 5638753489 is 9843578365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4253648400 + 1385105089 = 65220^2 + 37217^2 .

It is a cyclic number.

It is not a de Polignac number, because 5638753489 - 2⁷ = 5638753361 is a prime.

It is not a weakly prime, because it can be changed into another prime (5638753459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2819376744 + 2819376745.

It is an arithmetic number, because the mean of its divisors is an integer number (2819376745).

Almost surely, 2^5638753489 is an apocalyptic number.

It is an amenable number.

5638753489 is a deficient number, since it is larger than the sum of its proper divisors (1).

5638753489 is an equidigital number, since it uses as much as digits as its factorization.

5638753489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21772800, while the sum is 58.

The square root of 5638753489 is about 75091.6339481303. The cubic root of 5638753489 is about 1779.8949448792.

The spelling of 5638753489 in words is "five billion, six hundred thirty-eight million, seven hundred fifty-three thousand, four hundred eighty-nine".