5618813789 has 2 divisors, whose sum is σ = 5618813790. Its totient is φ = 5618813788.

The previous prime is 5618813777. The next prime is 5618813839. The reversal of 5618813789 is 9873188165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4008156100 + 1610657689 = 63310^2 + 40133^2 .

It is a cyclic number.

It is not a de Polignac number, because 5618813789 - 2⁸ = 5618813533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5618813749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2809406894 + 2809406895.

It is an arithmetic number, because the mean of its divisors is an integer number (2809406895).

Almost surely, 2^5618813789 is an apocalyptic number.

It is an amenable number.

5618813789 is a deficient number, since it is larger than the sum of its proper divisors (1).

5618813789 is an equidigital number, since it uses as much as digits as its factorization.

5618813789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 56.

The square root of 5618813789 is about 74958.7472480697. The cubic root of 5618813789 is about 1777.7944518374.

The spelling of 5618813789 in words is "five billion, six hundred eighteen million, eight hundred thirteen thousand, seven hundred eighty-nine".