5618813839 has 2 divisors, whose sum is σ = 5618813840. Its totient is φ = 5618813838.

The previous prime is 5618813789. The next prime is 5618813861. The reversal of 5618813839 is 9383188165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5618813839 - 2¹¹ = 5618811791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5618813339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2809406919 + 2809406920.

It is an arithmetic number, because the mean of its divisors is an integer number (2809406920).

Almost surely, 2^5618813839 is an apocalyptic number.

5618813839 is a deficient number, since it is larger than the sum of its proper divisors (1).

5618813839 is an equidigital number, since it uses as much as digits as its factorization.

5618813839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 52.

The square root of 5618813839 is about 74958.7475815865. The cubic root of 5618813839 is about 1777.7944571107.

The spelling of 5618813839 in words is "five billion, six hundred eighteen million, eight hundred thirteen thousand, eight hundred thirty-nine".